Features: 1.With simpler move operation than ordinary mouse, such pen-type mouse adopts ergonomic design, more suitable for grip. 2.Preferred by notebook users, USB computer stylus can be compact, plug and play, no need to drive. 3.And pen-type mouse is with on/off switch, which also adopts optical tracking system. 4.Universal 2.4ghz wireless USB light pen mouse, adjustable 800/1200/1600dpi, 4 button, suitable for PC intelligent TV. 5.Support systems for Windows 7 / 8 / Vista / XP/ 2000 / Android / Linux / OS X. specification:Item Type: Pen-type mouse Model: PR-03 2.4G Wireless Mouse Transmission Distance: 10 meters 3-Step DPI Adjustment: 800/1200/1600 Mini Wireless Receiver Supported Systems: For Windows 7/8 / Vista/ XP/ 2000 / Android / Linux / OS X. Battery: Use 1 AAA battery (not included) Product Color: Red / Blue / Gray (Optional) Number of Keys: 4 Wireless Carrier Frequency: 2402 MHz-2480 MHz Wireless Working Channels: 16, automatic frequency hopping Rated Working Voltage: 1.5V Rated Working Current: 6 mA Tracking System: Optical Maximum Acceleration: 14 inch/second Material: ABS plastic PackageList:1 x Wireless Mouse Capacitive Pen1 x Mouse Base1 x USB Receiver1 x User Manual1 x USB to Type-C Adapter1 x USB to Micro Adapter NoteLow Voltage Alarm Function: When all batteries are low, the low?voltage alarm light of the pen and mouse will light up to remind you to replace the battery as soon as possible. When replacing the battery, you must use alkaline AAA batteries.