Compatibility: V4.0 - Support: HSP, A2DP, AVRCP - Transmission power: Class 2 - Working distance <10m - Talk time: 7 hours - Music time: 4 hours - Standby time: 60 hours - Charging time: 1.5 hours - Support for Siri - Equipped with a power bank - 2000 mAh battery - The headphone box can charge the headphone more than 30 times - The headphone capacity is 45 mAh - The headphone is sensitive to touch - It works via a micro charger