Sandberg Bluetooth Earbuds Powerbank - Superior sound quality Power on the go Display in charging case for battery status Bluetooth earbuds: Bluetooth 5.1, Up to 10 m wireless range, True Wireless Stereo Music Playback, Frequency range of speakers: 20 Hz-20 kHz, Support Multi-point, Earphone battery: 50 mAh, Talk time: up to 6 hours, Standby time: up to 280 hours Powerbank: Capacity: 2000 mAh, Input voltage: 5 V, Output voltage: 5 V 0.5A Više informacija na linku