Cardo S640 Bluetooth headset comparison

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Product name	Cardo S640 Bluetooth headset	Samsung WEP870	Plantronics Voyager 855 Bluetooth headset	Plantronics Discovery 975	Sony Ericsson HBH-IS800 Wireless Stereo Headphone
Price	Check Prices	$38.93 to $49.00	$43.41 to $76.19	$99.99 to $128.84	$109.99
CNET editors' rating	4.0 stars Overall score: 8.0 (4.0 stars)	4.0 stars Overall score: 8.0 (4.0 stars)	4.0 stars Overall score: 8.0 (4.0 stars)	4.0 stars Overall score: 8.3 (4.0 stars)	3.5 stars Overall score: 7.5 (3.5 stars)
Average user rating			3.0 stars	3.5 stars	3.0 stars
Release date		August 18, 2009		August 20, 2009
The Bottom Line	The Cardo S640 is a great Bluetooth headset for those who don't like wearing one on the ear all the time. The sound quality is terrific, and it's easy to use.	The Samsung WEP870 is a great choice for those who want a convertible mono and stereo Bluetooth headset.	If you want a quality Bluetooth headset that can be either mono or stereo, then the Plantronics Voyager 855 is an excellent choice.	Despite its finicky controls, the Plantronics Discovery 975 is a stylish headset with a comfortable fit, a great feature set, and excellent call quality.	The solid-sounding Sony Ericsson HBH-IS800 Wireless Stereo Headphones are an excellent option for anyone looking for the very smallest Bluetooth headset money can buy to use with an A2DP-compatible music phone or MP3 player.
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Headphones Form Factor	In-ear ear-bud	Ear-bud	Convertible	In-ear ear-bud	In-ear ear-bud
Sound Output Mode	Mono	Info unavailable	Stereo	Mono	Stereo
Microphone Operation Mode	Info unavailable	Info unavailable	Mono	Mono	Info unavailable
Connectivity Technology	Wireless - Bluetooth	Wireless - Bluetooth 2.0	Wireless - Bluetooth 2.0 EDR	Wireless - Bluetooth 2.1	Wireless - Bluetooth 2.0 EDR
Headphones Type	Headphone - Monaural	Headphone - Binaural	Headphones - Binaural	Headphone - Monaural	Headphone - Binaural
Compatible Mobile Devices	Info unavailable	Samsung SGH-A137 Samsung SGH-A637 Samsung SGH-A767 Samsung SGH-A777 Samsung SGH-A837 Samsung SGH-i907	LG Motorola Nokia Samsung Sony Ericsson	Universal	Info unavailable
Product Type	Headset - Wireless - Bluetooth	Headset - Wireless - Bluetooth 2.0	Headset - Wireless - Bluetooth 2.0 EDR	Headset - Wireless - Bluetooth 2.1	Headset - Wireless - Bluetooth 2.0 EDR
Microphone	On-cable	Built-in	Built-in - Boom	Built-in	Built-in
Recommended Use	Cellular phone	Cellular phone	Cellular phone	Cellular phone	Cellular phone
Product Description	Cardo S-640 - Headset	Samsung WEP870 - Headset	Plantronics Voyager 855 - Headset	Plantronics Discovery 975 - Headset	Sony Ericsson Bluetooth HBH-IS800 - Headset
Manufacturer Warranty	1 year warranty	Info unavailable	Info unavailable	1 year warranty	Info unavailable
Remote Control	None	Info unavailable	Info unavailable	None	None
Full specifications	Full specifications	Full specifications	Full specifications	Full specifications	Full specifications
Buying choices	E-mail me when this product is available	Beach Camera $44.99 In stock: Yes Buydig.com $39.95 In stock: Yes Amazon.com $45.37 In stock: Yes Prices from 4 authorized stores	Amazon.com $43.41 In stock: Yes OfficeMax $119.99 In stock: Yes Next Warehouse $76.19 In stock: Yes Prices from 3 CNET Certified stores	Amazon.com $106.94 In stock: See Site Dell Home & Home Office $119.99 In stock: Yes MSG Digital $99.99 In stock: Yes Prices from 4 CNET Certified stores	Prices from 0 CNET Certified stores
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