•New Bluetooth V5.3 chip: High-speed and stable transmission, music and games without delay, HD calls, enjoying audio and video synchronization experience •ENC HD noise reduction call: AI dual microphone dual anti-noise, intelligent separation of voice and background sound •ANC active noise reduction: Maximum noise reduction 15dB. Personalized custom mode, noise reduction ANC mode, transparent mode •Game/Music dual modes: Game/music mode can be switched freely, 53ms low latency in game mode, real audio and video synchronization •Long battery life: All-day ultra-long battery life, about 5 hours using time when fully charged •Automatic pairing: Open the cover and connect automatically Specifications: •Bluetooth chip: AC7006F8/Version 5.3 •Transmission Distance: ≧10 meters •Frequency response: 20Hz~20kHz •Drive unit: 10mm •Sensitivity: 118±1.5dB •Music time: "ANC-OFF": about 5 hours, "ANC-ON": about 4 hours (100% volume) •Talk time: about 4 hours •Earphone battery capacity: 40mAh •Charging box battery capacity: 300mAh •Charging time: 1.5 hours •Standby time: about 60H Package included: •1 x Pair of Bluetooth Earphones •1 x Charging Case •1 x Charging Cable •1 x English User Manual