A4Tech NB-20D User Manual page 5

SECIFICATION
Wireless Battery Free Optical Mouse
Manufacturer:
A-FOUR TECH CO., LTD.
Use of the equipment: For PC's Mouse
Equipment category:
Wireless Battery Free Optical Mouse
Mode of operation: Simmplex
Frequency / Frequency range: 121 ~ 128KHz
Maximum transmitter output power:
2.5 mW
Number of channels and channel separation: Scan frequency to lock a working point for Wireless Battery Free Mouse . Working frequency
of Every Mouse maybe be different , working point from 121 KHz to 128KHz.
Modulation:
ASK
Information on antenna:
It don't included with antenna. The signal transfer by Induction Coil .
Duty cycle: 240 uS
Power supply:
PowerPad: USB port . 5V , max: 300mA (Included with Induction coil. )
Wireless Battery Free Optical Mouse: Faradism , max: 5V ,90mA (Induction Coil designed to mouse.)