Dual-mode 2.4G+BT design for stable wireless connection and smoother operation. Horizontal and vertical dual-use, 90-degree rotation sensing area to meet different usage needs and provide a more comfortable user experience. Compact structure, and portable, suitable for use in business trips, travel, etc. Compatible with multiple systems, including for ,/iOS, Android,/Linux/ , with a wide range of applications. Aluminum alloy scroll wheel design, and accurate positioning, no lag, providing a smooth operation experience. Note: [BT version only supports win7 or above system] Resolution: 1000DPI Wireless band: 2.4G MHz / Bluetooth Built-in lithium battery: 3.7V 150mA Charging time: 2 hours Use time: 15 hours (continuous use) 170 days (standby) Using distance: 10-12 m Weight: 30g Transmission interface: USB1.1 USB2.0 [Bluetooth version 5.0] Support system: Android/iOS//Linux/ Colour:Black Material:ABS Size:7x3x2cm Package Contents: 1 x Bluetooth mouse Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.