Wireless Fingertip Ring Remote Control Page Turner Bluetooth 5.3 Scrolling Ring for Mobile Phone Wireless Camera Shutter Selfie

High-concerned chemical : None Wireless Communication : Bluetooth Use : Universal Brand Name : APWIKOGER Origin : Mainland China Bluetooth-compatible version : Ver.5.3 Support Agreement : BLE Transmission power : classII(-6dBm~+4dBm) Frequency (Hz) : 2.40GHz~2.48GHz Bluetooth-compatible : 10 meters Charging interface : Type-C Input current : DC5V Ring battery : 40mAh*1(401030) Continuous use time : 12 hours Fingertip Ring Remote Control : Remote Control Mouse Finger Ring Mouse : Scrolling Ring