Bluetake BT400 G5 Bluetooth Headset


I’ve recently become interested in Bluetooth headsets. Why? Two reasons mainly. The first reason is that my phone of choice right now is the Treo 650. It’s not the most svelte of phones… Being able to keep the phone in my bag or pocket, while holding a conversation is preferred to holding it in my hand. The other reason is for safety. When I’m driving, I don’t need to be groping around for the phone in my bag when I want to make or receive a call. My first headset review is of Bluetake’s BT400 G5 Bluetooth headset.

Hardware Specs

General Radio: Carrier Frequency: 2.4~2.480GHZ
Radio Performance – Receiver: Rx sensitivity < -80 dBm
Radio Performance: Bluetooth Class 2, up to 5~10 meters (in open
(The maximum operating range depends on the paired phone model,
battery power, and environmental factors.)
Spread Spectrum: FHSS (Frequency Hopping Spread Spectrum)
Bluetooth Profile Supported: HSP (Headset Profile), HFP (Hands-Free
Antenna: Chip Antenna
Input Power: 5V, 200~500mA, AC adapter
Battery: 3.7V / 120mA / Li-Polymer / Rechargeable
Standby Time / Talking Time: 250 hours / 5 hours
(The maximum operating time depends on the usage frequency and
environmental factors. A long distance wireless connection and use
with a mobile phone will increase the power consumption.)
Speaker: Diameter 13mm
Frequency Response: 300Hz ~ 3.4KHz
SPL (Sound Pressure Level): 112 ± 3dB @ 1KHz
THD (Total Harmonic Distortion): 5%
Impedance: 150 Ω ± 20% @ 1V, 1KHz
Power Rating: 5mW (Normal) / 10mW (Maximum)
Dimensions: 82mm(L) x 53mm(W) x 24mm(H)
Weight: 20g

Package Contents

BT400 G5 Headset
AC adapter
User Guide

The BT400 G5 is constructed of blue plastic with a rubber covered ear hook and black rubber face. On the face of the headset, there are two buttons on either end, with a status LED in the center. The Power / Mute button is located towards the back, while the Talk / Transfer button is located towards the front. The status
LED blinks blue while the headset is turned on, and alternates between blue and red when in pairing mode.

To turn on the headset, hold down the Power / Mute button for 6 seconds. To turn the headset off, hold down the Power / Mute button for 2 seconds. While in a call, you press the button once to go into mute mode.

To answer a call, you press the Talk / Transfer button once. To end the call, press it once. Holding this button for 2 seconds will transfer the call back to the phone’s earphone. Not all Bluetooth phones support the transfer function. The Treo 650 does, but I found that it’s really easy to accidently disconnect the phone
instead of transferring it.

The buttons on the face of the headset do have good tactile feedback, but since the entire surface of the face is ribbed, it might take a little while to figure out exactly where to press to  activate the buttons.

On the inside of the BT400 G5, you will see the ear hook attachment point and the earphone. The earphone does not fit into your ear canal like a lot of headsets that I have seen on the market. It looks like it would be uncomfortable to wear, but in reality, I found it to be quite comfortable. I had no problem at all wearing the headset for hours at a time. The ear hook didn’t bother me even though I wear glasses. The earphone rests just inside the main opening of your ear without pressing on anything.

The ear hook has two loops of which I’m unsure of their use. Anyone have an idea? The best part about the ear hook is its ability to rotate so that you can wear the headset on either side of your face. Just twirl it around and then flip the hook. Easy.

As you can see, this headset is definitely not one of the smallest on the market. But even so, it isn’t overly huge either.

On the top edge of the headset, there is the Volume up button.

And on the bottom, there is the Volume down button. Also on this side, there is the AC adapter connection point. The BT400 G5 comes with a small AC adapter. Unfortunately, it does not come with a USB cable that you can use for charging.

Here you see the microphone. The headset can be easily swiveled up and down so that the microphone points towards your mouth.

I had no problems at all pairing this headset with my Treo 650. Once paired, I could then turn off the headset and turn it back on later without any problems re-pairing when a phone call would come in.

Below are three audio clips of BT400 G5 in action. This will give you an idea of what it sounds like to receive a call from someone using the BT400. I used the free voicemail / fax service from for these tests. I
signed up for a free account, got a phone number and called it with the Treo 650, using the headset. The resulting voicemails are then emailed to you. Pretty nifty! The only problem is that the driving test files came in as .WMA files while the wind and inside test files showed up as .WAV files. Not sure what was up with that, but oh well. These tests had the BT400 G5 paired with my Unlocked GSM Treo 650. I use Cingular, and at test time had full signal strength. The phone was in my jacket pocket during the wind test and beside me on the car seat for the driving test. Click to listen.

Inside Test (392k .WAV file)
Wind Test (312k .WAV file)
Driving Test (92k .WMA file)

In my opinion, the first clip sounds pretty darn good until I start walking away from the phone. That’s to be expected though and I don’t fault the phone for that. With the wind test, I thought it sounded pretty good too. Even when the wind was blowing directly into the microphone, it really wasn’t that bad. The audio was clear and crisp. The driving test on the other hand, has some definite audio doubling or echoing problems. My truck is kind of noisy though, so I hesitate to totally fault the headset.

I also conducted several ‘real world tests’. I called Judie and let her tell me what she thought of the audio quality. Here’s what she had to say:

“When the sound was clearest, it sounded like a typical mobile phone – clear, but not as clear as a land
line. However, there were moments when the headset would “fuzz out”, making a noise similar to static, but not as crackly. Since Julie was in a vehicle with the windows rolled up, these noises could not be attributed to wind noise.”

After using the headset for a a week or so, whenever I would call my friend Jeanne, she would say “You’re using that headset again aren’t you?”. She said my voice was choppy frequently during the conversation. I let her use the headset to call her Dad, and he said the same thing. Then I used a different phone to call her,
while she was using the BT400 headset with my Treo. I did hear a brief choppiness, but not enough to really bother me. Maybe I’m not that sensitive to sound quality as some people…

So the bottom line is that this headset is comfortable to wear, relatively easy to use, and has very good audio quality on the headset side of the conversation. The quality on the receiving side seems to be less stellar though, so it’s really hard for me to say if it should be recommended or not. I think at this point that I just need some more experience with other headsets to see how this one compares. Look for an update in the near future…


Product Information

  • Mobile phone with Bluetooth capability
  • Comfortable
  • Easy to use
  • Good audio quality through headset
  • People receiving calls complain of choppiness
  • USB charger cable not included
Posted in: Bluetooth Gear, Wireless
{ 7 comments… add one }
  • Julie March 9, 2006, 2:56 am

    Post your comments on the Bluetake BT400 G5 Bluetooth Headset review.

    Just click the POST REPLY button on this page.

  • clingeek March 9, 2006, 3:29 am

    Just saw your review. I, too, had searched for a while for a good BT headset. This one is unusually cool. I’ve been using it for a month. It’s a bit expensive ($100). See if they’ll get you one to review, or get it at a store where you can return it if you no likey 😉 . I found it at a local Verizon-authorized dealer (not the corporate store).

  • Breeze March 9, 2006, 5:52 pm

    The whole subject of the headsets is very personal.

    I have a Treo 650 as well, and because I travel alot, I need and use a headset all the time.

    My requirements for a bluetooth set are the following
    1)Must sound to my customer as close to a landline as possible
    2)Must be as easy to wear as possible

    With that in mind, I think I have about 15 headsets that I still own, and have used in my office and on the road.

    I wanted to switch to a bluetooth, because I had too many situations where I was making a turn, or changing a gear, the cord would catch, and the headset would fly off.

    I’ve come to like two features the most to meet my requirements; 1)a boom mike, that places the mic as close as possible to my mouth. 2) An over the head design, with a comfortable cushioned ear pad.

    I looked for quite a while, and have found the Blueparrot B150

    Although when I’m in the car, I look like I could be taking orders from the MacDonalds drive thru, the headset works great. I combine this with an external antenna from Wilson electronics, and I hav a great setup.

    I check from time to time with customers while I’m on the phone, and they are amazed that I’m even on a headset at all. They often remark that they thought I was on a land line, even as I’m doing 70 down with Interstate in the middle of a rain storm.

  • forrester March 10, 2006, 1:41 am

    First: Breeze, I am from Richmond. It is good to see you here!

    Second: I have all but lost hope of finding a BT headset that is comfortable and clear. I could not even get the Bluespoon AX2 to feel comfortable.

    I have a T650, and I have heard it is notoriously hard use with a BT headset for some reason, but that the Plantronics Voyager 510 works well with it.

    Great and thorough review, as always.

  • Breeze March 10, 2006, 2:03 am

    Thanks for the hometown hello!!!

    Yeh, headsets are very personal. But that’s why the forums are so great. You can read about the specific ways that a headset works for an individual, and hear the key words that mean the most to you.
    I didn’t want a headset that looked like I came off a Star Wars set. I wanted one that met the specific needs I had, and fix the problems that I was dealing with.

  • brentb March 10, 2006, 3:27 pm

    Julie in your review you said “The ear hook has two loops of which I’m unsure of their use. Anyone have an idea?”

    I assume those would be a good spot to clip the headset to a belt, or napsack or something when not in use, so you don’t have to jam it in a pocket. Maybe thats what they are for. I wish my Palm Bluetooth Headset had something similar on it.

    Here is a tip that might be helpful to someone. On some headsets the loop that wraps around your ear might not fit well enough, or stay looped tight enough with continued use. What you can do, is get a small piece of stiff solid wire, something like a paperclip, that is easy to bend, but will stay bent to the shape you need. Place it next to the ear loop, then slide a piece of heatshrink tubing (available at radioshack) over the wire, and loop, and heat it up with a hairdryer or similar. As the tube shrinks with heat, the small wire is bonded next to the loop, and will serve as a type of ‘backbone’ to keep it bent to the shape you need. You could also rig up something with your fave pair of sunglasses this way and make your own ‘bluetooth enabled sunglasses’ instead of having to buy a new pair of Oakley RAZRWires.

  • Julie March 10, 2006, 3:34 pm


    I’m sure you are right about the loops.

    I like your idea for molding the ear hook to custom fit your ear! 🙂

Leave a Comment