Quick overview from the supplier:
Wireless Mouse Gembird MUSW-4B-02-BS Optical 800-1600 dpi 4 buttons Ambidextrous 2xAAA, Black/Silver
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4-х кнопочная беспроводная оптическая мышь с миниатюрным USB-трансивером сигнала
Кнопка выбора разрешающей способности датчика (800 - 1600 DPI)
Wireless technology: 2.4 GHz, GFSK RF modulation, 80 channels, 32 bit device ID
Operating distance: up to 10 m Power class: RF power 3 dBm (max. EIRP) Internal antenna type; antenna gain in dBi (typical): 2 dBi ±1 dBi
Optical resolution: 800, 1200, 1600 DPI selectable by the button
Power supply: AAA battery x 2 pcs (not included)
Power consumption: 3 V DC, up to 20 mA
Nano receiver: USB 1.1 compatible, weight 2 g, 6 x 14 x 18 mm
Mouse: dimensions 98 x 65 x 38 mm, net weight 53 g (without batteries)
Operating conditions: -5...45 Celsius degrees, 10-80 % humidity
https://gembird.com/item.aspx?id=10389&lang=ru
