Riversong AIRPRO EA79 Truly Wireless Bluetooth In Ear Earbuds

HEADSET AIR PRO EA79 WHITE
Bluetooth solution: HFP, HSP, A2DP, AVRCP
Frequency range: 20Hz-20KHz
Connection distance: 10m
Speaker size: Φ8mm
Impedance range: 32 Ω±5％
Earbud battery capacity: 25mAh
Charging case battery capacity: 180mAh
Input: 5V == 0.5A
Charging time: ~1.5h
Playback time: ~3h (volume at 70%)
Charging interface: lightning USB
Net weight: ~55g