Plantronics Discovery 640 Silver/Black In-Ear Only Headsets Reviews

Plantronics Discovery 640 Silver/Black In-Ear Only Headsets

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My Favorite Bluetooth Headset, Bar None!

Mar 16, 2006
Review by  
Rated a Very Helpful Review

Pros:Small & lightweight, versatile charging options, crystal-clear calls, portable/carrying case included.

Cons:Volume rocker button may be too small for big hands.

The Bottom Line: This headset is ingenious and a delight to use. It's a perfect balance with form and function definitely in mind.


I've had the Jabra BT-200 and the Sony/Ericsson HBH-300 in the past. I enjoyed the in-ear canal design of the Jabra headset but the static was horrible even if my Motorola v710 phone was next to it. The Sony Ericsson had great reception but the fit wasn't good. You need to have a certain ear-type in order to wear the latter.

Now bring in the Plantronics Discovery 640 headset! This device is a must have if you like the in-ear design, with clear sound and a clever recharging system.

Key Features:
• 5 hours talk time, can recharge between use using pocket charger that holds a AAA, making the total capacity 15 hours
• Standby time is almost 3 days per charge
• Bluetooth 1.2
• Range: 30 feet
• Headset controls: volume up/down, mute, last number redial, voice-activated dialing
• Uses lithium ion battery
• Weighs 9 grams, with length of 2 inches
• 1 year warranty.

What's In The Box?
• a nice aluminum case
• headset
• multilingual instruction manual
• AC adapter for charging
• optional ear stabilizer hook
• 3 soft gel ear tips (small, medium & large)
• four charging adapters for use with (Nokia, Sony Ericsson, Siemens and Motorola phones)
• AAA battery charger
• AAA battery
• headset carrying pocket

Use & Impressions
When you first open the carrying case, you'll be confused as to what the attachments and adapters are about. However, once you figure it out, the system is ingenious. The headset comes with a pocket case that's like a lipstick case. The headset can be store securely in here and it clips onto your pocket since it has a hook similar to that of pens. That's just the beginning. At the bottom of the case, there is a port where you can attach the AC adapter to charge the headset or you can plug in the other adapters onto it. The AAA battery charger snaps into place and it makes the unit as big as a Mont Blanc pen. The AAA battery has the capacity to fully charge the headset twice before you need to get a fresh battery. Hint: It's a good idea to invest in rechargeable batteries. If you prefer to use you're phone's charger, instead of the included AC adapter or AAA adapter, that's also an option. The smaller cylindrical attachments also snaps into place at the bottom of the cylindrical cradle. You can use the charger for your Nokia, Sony Ericcson, Siemens or Mortorola. The Motorola adapter uses the old prong method, not the USB charger found in the newer lines like the RAZR.

The unit fits very securely in either ear and it has 3 ear tips for you to experiment as to which will give you the most secure fit. If that's not secure enough for you, you can attach the ear stabilizer hook that wraps around your ear for more stability. Personally it's not needed.

To pair to the phone for the first time, you have to depress and hold the Call Control Button (on/off button) until the light flashes blue-red-blue sequence. It uses the passkey of 0-0-0-0 (four zeros) to pair with your bluetooth capable phone. Once paired and when you turn the unit on to use the headset status lights will blink to indicate the level of charge of the headset.

- 3 red flashes: > 2/3 charge
- 2 red flashes: 1/3 - 2/3 charge
- 1 red flash: < 1/3 charge

To turn the unit off, press and hold the Call Control Button until the indicator lights glow red or you hear a beep. To answer a call, press the Call Control Button or the Volume/Mute button. To end a call, press the Call Control button briefly. On my LG VX9800, when pressing the Call Control Button until you hear a beep, it activates the spoken functions. To turn the mute function on, you need to hold both sides of the volume bar and to turn it off again, do the same thing. By pressing the Call Control Button twice in quick succession, you activate the last number redial function.

This is the first headset that I truly enjoy. It's very light and you hardly notice that you have it in your ear. The calls on both ends are very clear and very minimal static if any. I enjoy the versatility when it comes to charging the phone. The AAA charger comes in handy when you can't be at home or in your car to charge the headset.

So...if you're looking for an in ear headset that looks cool and works as advertised, look no further!


Recommend this product? Yes


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