Mobile operations are more relaxed than ordinary mice, with a compact base that saves space. Ergonomic design fits comfortably in the hand, providing comfort at various angles and reducing fatigue. Plug and play functionality—no driver required; sleek and compact, ideal for notebook users. Equipped with an On/Off switch; 2.4GHz wireless transmission with a reliable range up to 10 meters. Pen-style input allows use on narrow desktops; thoughtfully positioned buttons for easy operation. Specifications: Key count: 4 buttons DPI: 800/1200/1600 DPI Current: 3V 15mA RF frequency: 2402 MHz - 2480 MHz Power supply: 1 x AAA battery (not included) Material: ABS Compatibility: PC, smart TV Supports Windows 2000/XP/Vista/7, Android, MAC OS, etc. Dimensions: 14 x 2 x 1.5 cm / 5.5 x 0.78 x 0.59 inches Weight: 29g Package Includes: 1 x Pen Mouse 1 x USB 2.4GHz Receiver 1 x Mount 1 x Instruction Manual Note: Slight variations of 0-1 cm may occur due to manual measurement. Colors may appear slightly different depending on screen settings and lighting conditions.