Features 1. New design, open and non earing, breathable and non stuffy, healthy and hygienic. 2. Skincare friendly liquid soft silicone ear loop, cloud like and painless to wear. 3. Latest technology directional transmission without leakage, 360 degrees panoramic sound effect. 4. Adjustable swivel hook, adjusting the angle of the ear shape for all-round comfort. 5. ENC noise reduction technology for high-definition calls. 6. Game with zero latency, stable transmission, and synchronized sound and picture. 7. IPX5 level anti sweat. 8. Ultra long battery life, earphones continuously play music for for 8 hours, paired with a large capacity charging compartment for 48 hours 9. Caller ID prompt, intelligent voice prompt (default English) Specifications Product Version: V5.4 Transmission distance: 10m Sensitivity(S): 128+-3dB Impedance: 24ohm+-15% Signal to Noise Ratio(SN): 59dB Rated Power: 15mW Maximum Power: 20mW Frequency response range: 20Hz-20KHz Dimension: 14.2mm Earphone battery: 90mAh Battery case: 600mAh Talking time: 10 hours Music time: 10 hours Standby time: 90 hours Charging time: 2.5 hours Charging port: TYPE-C Package list: Headphones x1 USB Cable x1 User Manual x1