1The product is ergonomically designed to get rid of the uncomfortable feeling of longterm use of traditional mouse. 2There are 3speed CPI adjustment, and respectively are 800/1200/1600. 32.4G wireless transmission technology, lowlatency transmission within 10 meters and energy saving features. 4The maximum acceleration is 14in/s, and this product can improve work efficiency. 5Strong compatibility, support for Windows/ Android/ OS X/ Linux system equipment. Item Type:Pocket Pen Mouse Model: PR-06 Material: ABS Connection: Wireless 2.4g Effective Transmission Distance: Approx. 10 meters / 32.8ft Working Method: Optical Number of Keys: 5 keys Three-Speed CPI Adjustment: 800/1200/1600 Maximum Acceleration: 14in/s Battery Type: 1 x AAA battery (not included) Support System: For Windows/Android/OS X/Linux Applicable Equipment: Computers, mobile phones, smart TVs, etc. 1 xPocket Pen Mouse 2 x Adapter 1 x Receiver 1 x Base 1 x User Manual