In-ear 5.0 Double-moving Ring Four-speaker Subwoofer Bluetooth Headset With Rotating Display Feature: This true wireless Bluetooth headset uses Bluetooth 5.0 chip, automatic pairing after booting, built-in active noise reduction IC, high-definition call, large-capacity and long-lasting battery life. This product uses 14.2 graphene diaphragm, professional alloy sound transmission network, Intelligent noise reduction, 108dB sensitivity, oxygen-free copper voice coil. Two connection methods: single/dual free use, single ear listening exclusive, binaural listening HiFi stereo. Smart operation: automatic power on/off/answer/reject/previous/next/call Siri. To ensure that there is no delay in 5.0 Bluetooth games, the electric cabin can be used as a mobile phone holder and a mobile phone emergency power supply. The headset supports fingerprint intelligence and refuses to press keys Possess IPX6 waterproof rating, not afraid of rain and sweat Binaural high-definition call, 5.0 automatic power-on pairing, CVC8.0 built-in active noise reduction IC. Scope: Bluetooth version: 5.0 (binaural call) Support protocol: A2DP, AVRCP, HFP, HSP, SPP Working temperature: -10 55 Speaker frequency response: 50HZ-20KHZ Charging voltage: 5V-500MA Earphone speaker: 6mm Headphone battery capacity: 50MAH Storage box battery capacity: 300MAH Transmission distance: 10m Operation: Fingerprint Talk time: 4-5 hours Play time: 4-5 hours Support system: all devices and mobile phones that support Bluetooth Package Included: 2x headphones 1x data cable 1x charging compartment 1x manual 4x earmuffs