Microphone Built-in, Headset, In-ear ear-bud (with over-the-ear mount), NoiseAssasin 2.0, Acoustic voice activity detector, 1 year Limited warranty

Microphone Built-in, Headset, Behind-the-neck, 1.1 oz, Stereo, Volume control, Answer/end button, Play/pause button, Track select buttons

Microphone Built-in Boom, Headset, Convertible, 0.5 oz, Stereo, QuickPair, Volume control, Answer/end button, Play/pause button, Track select buttons

Microphone Built-in, Headset, Clip-on, 1.3 oz, Stereo, Phone book, Built-in DSP, OLED display, Answer/end button, Mono/stereo switch, Phone/music mode switch, 1 year Limited warranty Parts and labor

Microphone Built-in, Headset, Over-the-ear, 0.4 oz, Mono, Volume control, Answer/end button

Bluetooth

Intel ATOM (1.66 GHz), 1024 MB DDR II SODIMM, 2.8 lbs, 10.1 in TFT active matrix, Microsoft Windows XP Home Edition

CDMA2000 1X 1900/800, Up to 260 min, With digital camera / digital player, 4.9 oz

Symbian 60, Up to 400 min, 32 GB

GSM 850/900/1800/1900 / UMTS 2100 / CDMA2000 1X 800/1900, BlackBerry Handheld Software, 300 min

Intel Core 2 Duo (2.26 GHz), 2 GB DDR3 SDRAM, 4.4 lbs, 13.3 in TFT active matrix, EPA Energy Star, EPEAT Gold, Apple MacOS X 10.5

Microsoft Windows Mobile 6.1 Professional, 128 MB

GSM 850/900/1800/1900 / UMTS 850/1900/2100, BlackBerry Handheld Software, Up to 270 min

Symbian S60 3.2, Up to 270 min

GSM 850/900/1800/1900 / UMTS 2100 / CDMA2000 1X 800/1900, BlackBerry Handheld Software, 330 min, 128 MB

CDMA2000 1X 1900/800, Up to 327 min, With digital camera / digital player, 3.8 oz

Automotive, Navigation instructions, Street name announcement, 6.1 oz

Intel Core 2 Duo (2.0), 6 GB DDR2 SDRAM, 6.9 lbs, 16.4 in

W-CDMA 1700/2100 / GSM 850/900/1800/1900, Android, Up to 406 min, 192 MB

GSM 850/900/1800/1900 (Quadband) / UMTS 1700/2100, Up to 300 min, With digital camera, 4 oz