Wireless scroll ring, air finger ring mouse with touchpad, Bluetooth scroll remote control compatible with camera/selfie/laptop Size: 48 x 48 x 32 mm Weight: 36 g Connection method: 2.4 GHz or Bluetooth Bluetooth version: 5.3 Ring mouse battery capacity: 40 mAh Charging case battery capacity: 250 mAh Charging time: 1.5 hours Remote controllable ring mouse – intuitive operation without touching the smartphone (D06Pro USB version) Color: Black Material: Plastic Package contents: 1 x Ring mouse 1 x Charging case 1 x USB receiver 1 x Charging cable Only the above package contents are included. Other products are not included. Note: Due to light reflections and different screen settings, the color of the item in the picture may differ slightly from the original. The measurement deviation is +/- 1-3 cm.