Welcome to our store! 1. With simpler motion operation than a regular mouse, this pen-type mouse adopts an ergonomic design, more suitable for grip. 2. Preferred by laptop users, the USB computer pen can be compact, plug and play, without needing to drive. 3. And a pen-type mouse comes with an on/off switch, which also uses an optical tracking system. 4. Universal 2.4GHz wireless USB light pen mouse, adjustable 800/1200/1600dpi, 4 buttons, suitable for PC smart TV. 5. Support system for Windows 7/8 / Vista / XP/ 2000 / Android / Linux / OS X. Item Type: Pen Type Mouse Model: PR-03 2.4G wireless mouse transmission distance: 10 meters 3-level DPI adjustment: 800/1200/1600 Wireless mini 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 operating 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 inches/second Material: ABS plastic 1 x Wireless Mouse Pen 1 x Mouse Base 1 x USB Receiver 1 x User Manual 1 x USB to Type-C Adapter 1 x USB to Micro Adapter Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.