DVAIO XD-E02 Buds Plus Truly Wireless Bluetooth Headset (Black, True Wireless) Bluetooth (Black, True Wireless)

Dvaio XD-E02 Wireless Earbuds. You can enjoy up to 9 hours of playback time on a single charge, which goes up to 20 hours with the handy charging case. Earbuds Charging Time 1 Hours, Case Charging Time 2 Hours. Earphone battery capacity 50 mAh, Case battery Capacity 200 mAh. Power Input Dc 5V . Sensitivity 108+/-5DB. Frequency response 20-20000Hz. Voice Assistance Enabled , IPX4 Warer & Sweat Resistantn , powerful 10mm sound drivers, 20 hours of playback. We used this buds like gym, travling, playing and etc.