- Resolution : 1000 CPI
- Scanning frequency : 3000 FPS
- Voltage : 5V
- Operating current :

- Spec : 55* 32* 19.4mm ( L* W* H)
- Support data transfer rate at : 1.5/ 12/ 480Mbps
-

- Max data transfer rate is 480Mbps
- Support up to 127 USB devices
- No driver installation required

- Air Flow : 28CFM
- Speed : 2300 rpm
- Noise level : 15 Dba
- Voltage : DC 5V
- Size : 220* 190* 25mm( L* W* H)

- Max data transfer : 480 Mbps
- No driver installaton required
- Indicator Lights status 1 powwer LED

- Sensitivity : 108dB -+ 3 dB
- frequency range : 20-20000Hz
- Max.output power : 100mW
- Frequency response : 30-15KHz
- Line length 1.8m

- Frequency range : 20-20000Hz
- Sensitivity : 110dB -+ 3%
- Impedance : 32 Ohm
- Max.output power : 100mW
- Line length : about 1.5 m
- Plug : 3.5 stereo gold-plated plug

- 2.4 GHz
- Compatible for over 30 feet
- Selectable frequency channels

- Resolution : 800/ 1200/ 1600/ 24000 dpi
- Scanning frequency : 3500 FPS
- Operating voltage : 5V
- Dimension : 120mm* 64mm* 38mm