Long battery life built-in doll wireless Bluetooth mouse power/connection status visible magnetic cover splicing three-mode silent desktop laptop rechargeable mouse universal Specification: Product size: 100*60*38mm Product charging interface: type-c Product DPI gear: 800-1200-1600-2400 Product connection method: wireless 2.4G+Bluetooth 1+Bluetooth 2 Product battery capacity: 1900mah Product battery life: about 20 days Built-in battery 20 days of battery life Built-in cute doll Upgraded 500mAh large capacity brand lithium battery, 100% higher than the previous generation! One can be used for several months 1900mah large capacity About 6 hours charging time About 20 days of battery life Ergonomic and user-friendly design The left and right buttons use bass micro switches, and the roller plus rubber creates a quiet and comfortable environment for you whether it is a quiet office or studying at night. Product list:one set(gray/green milk tea color