Astrum MW280 6B Wireless Optical Mouse Black A82528-B Maximum data transfer rate_1900 Mbit/s it has a built-in lithium

it has a built-in lithium battery so don’t worry about power

a TAB key and a backspace key

Antenna gain level (max): 9 dBi

Media access protocol: Access Control

DEDICATED MEDIA CONTROLS

Astrum MW280 6B Wireless Optical Mouse Black A82528-B Maximum data transfer rate_1900 Mbit/s it has a built-in lithiumAstrum MW280 6B Wireless Optical Mouse Black A82528 B 2. 4Ghz wireless unrestricted transmission Auto power saving mode Up to 1600 adjustable dpi for lower to higher precision control Plug and play support with nano receiver Compatible with Windows Chrome OS Linux Technical Specifications Interface 2. 4Ghz Buttons 6 (6D) buttons Voltage DC 1. 5V 5% Current 13 mA Transmission distance 10ms Mouse resolutions 800 1200 1600 DPI Dimensions 113 x 80 x 48mm