YESIDO KB16 2.4G Wireless Photoelectric Mouse 4 Key Quiet Ergonomic Computer Laptop Mice

• 2.4GHz wireless provides much stronger anti-interference ability, faster transmission speed and a more reliable connection
• Compact design, you can take it wherever you go, either for home, office or travel, just slide it into your pocket
• The ergonomic design will fit comfortably in your palm which will keep your hand from getting tired
• Low noise buttons, suitable for home, and office use

Specification: 

• Size: 11*6.3*3.2cm
• Default return rate: 125Hz
• Product material: ABS+PC+Rubber
• Three gears DPI: 1600/1200/800
• Key switch life: 2 million clicks
• Connection mode: wireless
• Rated current: ≤20mA
• Working voltage: DC5V
• Product weight: about 51.7g
• Power: 1 x AA battery (not included)