Docooler F-33 Trackball Mouse - Bluetooth 2.4GHz

Specification : Colour: black. Material: ABS Number of buttons: 8 Tracking System: Optical Frequency: 2402.85MHz-2480.85MHz Effective distance: >10m Operating voltage/current: 3.7V15mA Battery capacity: 730mAh Button life: 3 million times Wheel life: 1.2 million times DPI: 800-1200-1600-2000-2400DPI 2.4GHz transmission frequency: 125-500Hz BT Version: V5.2 BT transmission frequency: 90-133Hz Product dimensions: 0°132*102*29mm, 18°132*100*62mm Product weight: 260 ± 5 g. Package size: 15 x 11 x 6.5 cm Package weight: 390g Package List: 1 x mouse. 1 x user manual. 1 x charging cable