Multifunctional smart phone Bluetooth remote control Remote control for selfie, video page turning, liking videos, and turning pages in novels or comics Bluetooth connection, one-key return, dual-mode operation, remote lock screen, remote control, and remote selfie 10-meter remote control range, swipe freely, hands-free convenience Ergonomic ring design, comfortable to wear, reduces fatigue, enables easy swiping through videos or reading content Dual-mode operation: short video mode and cursor mode One-key return function allows quick return without delay One-key remote lock screen functionality – lock your phone without touching it Remote photo capture from up to 10 meters away, ideal for long-distance selfies without assistance Remote page turning for faster reading experience Compatible with most e-book apps and web pages that support left and right page navigation Up to 72 hours of continuous use with intelligent power management chip for low power consumption Bluetooth version: V5.3 Input power: DC-5V Battery capacity: 50mAh Usage time: approximately 72 hours of continuous use Supports mainstream apps Color: Black Material: Plastic Package Contents: 1 x Bluetooth wireless remote control Note: Light reflection and differences in display screens may cause slight variations in color. Measurement error allowed within +/- 1-3cm.