[. . . ] [. . . ] 2006 BenQ Input Device Performance Matters Category Model Description Wired M502 WideTrack Scroll Wheel 800 dpi Optical Sensor for Precision Movement Tracking (6400 frame rate) 5 Programmable buttons with BenQ Q-Point software TM Wireless M310 Plus State of art 27 Mhz wireless technology 800 dpi Optical Sensor for Precision Movement Tracking Smart Receiver Storage Manual power OFF Travel Pouch included Plug and Play N747 Ergonomic design 2. 4Ghz wireless device with uninterrupted performance Operate up to 30ft/10m Smart receiver inside design for easy portable use Super power saving design (1 x AA batteries) Plug and Play M530 Designed by BMW Group DesignworksUSA 27Mhz wireless device can operate up to 7 feet WideTrackTM scroll wheel Stylish charging base station Advanced power saving management 2 programmable hotkeys With BenQ Q-Point Software M555C Bluetooth wireless device can operate up to 30 feet Bluetooth Wireless HUB: Ability to connect your PC to numerous Bluetooth enabled devices. 800 dpi Optical Sensor for Precision Movement Tracking WideTrackTM Scroll Wheel Desktop cradle/charger charges the additional 2 AA NiMH rechargeable batteries to eliminate downtime 5 Programmable buttons with BenQ Q-Point software Exclusively Designed By: Wireless Technology Color Design Sensor Sensor Resolution Buttons Scroll Wheel Glowing scrolling wheel Scroll Wheel LED color connectivity dimension weight N/A Black/Silver Ambidextrous Optical 800 dpi 5 Yes (WideTrackTM) N/A N/A USB, PS/2 4. 9" x 2. 36" x1. 49" 0. 6 lbs. 27Mhz black/Silver Ambidextrous Optical 800 dpi 3 Yes Yes Red USB Mice: 3. 5" x 1. 75" x 1. 25" Receiver: 2. 1" x 0. 7" x 0. 3" (Stored Inside) 0. 4 lbs. 2. 4GHz Wireless Technology Black/Silver Ambidextrous Optical 800 dpi 3 Yes Yes Red USB 0. 55 lbs. Black/Silver Ambidextrous Optical 800 dpi 5 Yes N/A N/A USB, PS/2 Mouse: 4. 9" x 2. 36" x 1. 49" Charging Station: 2. 3" x 4" x 2" 0. 7 lbs. Dark Titanium/Black Ambidextrous Optical 800 dpi 5 Yes (WideTrackTM) N/A N/A USB Mice: 4. 9" x 2. 36" x 1. 49" Dongle/Transceiver: 3. 18" x 0. 82" x 0. 4" 0. 7 lbs. BenQ America Corp. ©2006 BenQ America Corp. [. . . ] [. . . ]