Product specifications: Product Name: Sports Games Earbuds Bluetooth-compatible version: 5.0 Driver unit: 8mm Earbud battery capacity: 50mAh Charging case battery capacity: 2000mAh Transmission distance: >10m Talk time: 4-5 hours Playing time: 4-5 hours Standby time: 650h Charging time: 1-2h Supported device: all Bluetooth-enabled devices and mobile phones Product size: 83*50*30mm/3.27*1.97*1.18" Product weight: 55g Color: Black, White