Description: Fingertip Scrolling Ring: Easy to use, you can on your finger and just use your thumb to operate. The loop is adjustable to fit fingers of different sizes. Multi Functions: The remote control is used for video likes, remote , turning , , watching videos, etc. Wireless Connection: Wireless V5.0 connection, audio and video synchronization, stable transmission, Universal fit and for Android phones. With Charging Case: 200mAH charging case, long standby. 25mAH remote control, single 8h standby. The charging case can also be used as a phone holder, which is convenient and practical. Mini Design: Lightweight, small size, easy to carry. The remote control is made of high plastic material, premium and durable. Specification: Product size: Ring: 2.5cmx2.5cmx1.2cm/0.98inchx0.98inchx0.47inch Charging Case: 41.9mmx41.9mmx21mm/1.65inchx1.65inchx0.83inch Material: plastic Version: V5.0 Transmission power: classll (- 6dBm~+4dBm) Frequency: 2.40GHz~2.48GHz Name: MOUSE Pairing password: 0000 Distance: 10M Remote control battery capacity: 25mAH Charging time: about 1 hour Battery capacity of charging chamber: 200mah Charging time: about 1.5 hours Package Includes: 1 Scrolling Ring 1 Charging Case 1 Charging Cable 1 Manual Note: Please allow slightly errors due to manual measurement and different monitors.