This product is either discontinued or we cannot get that from suppliers.
Rapoo 5g Wireless Laser 8900p, Sensor resolution 1600 dpi, USB, Black, Power Supply 4 x AA battery (included), Channels (details) 5 GHz.
Reliable 5GHz wireless transmission far away from the interference of 2.4 GHz wireless, bluetooth and WIFI devices. The backlight will be on when your fingers approach the touch area.