1Main Features: Compatible for scrolling ring, fingertip remote control to give like, play and pause. Cell phone camera remote shutter. Electronic book app page up down right and left. Remote smartphone volume adjustment. Remote one key screen on off. Advanced function, simulate the mouse to move the arrow to operate the mobile phone APP. 2Wireless Remote Control Ring: The remote page turner easily controls phone camera and electronic book remotely, including take pictures and videos. Scroll up and down, swipe right and left, volume up or down, pause and play and send likes for the videos. 3Working Time: The built in battery capacity of the ring is 40mAh, and it can last for more than 48 hours of working time on a single charge. If not in use, it can stand by for more than 4 months. 4Smart Ring Wearing Design: The remote control for iPhone camera adopts an ergonomic smart ring design, providing you with the most comfortable wearing experience. 5Intimate Gift: Mobile phone bluetooth remote ring control is the perfect gift for her or his birthday, Valentine's Day, etc. Specification Item Type: Mobile Phone Bluetooth Remote Control Material: ABS, Electronic Components Weight: Approx. 88g / 3.1oz Ring Battery: Lithium Battery (Shipped With Built In Battery) Ring Battery Capacity: 40mAh Charging Compartment Battery: Lithium Battery (Shipped With Built In Battery) Charging Compartment Battery Capacity: 180mAh Package List 1 x Ring 1 x Charging Compartment 1 x Charging Cable 1 x Manual