Be connected everywhere! Internal Memory RAM 1.5GB + 16GB Run Time 40 Hours Charging Method Wireless Charging, Wireless PowerShare Connectivity Wi-Fi 2.4GHz & 5GHz

 Unleashing Affordable Wireless Audio Excellence Wireless connection: Bluetooth® 5.2 Single earbud net weight: 4g Total weight with charging case: 35g Earbuds battery capacity: 43mAh Charging case battery capacity: 300mAh Connection distance: 10m (open space free of obstacles) Bluetooth protocols: HFP/A2DP/HSP/AVRCP