Specifications:
Connections: Bluetooth / Plug 3.5 mm (0.14”)
Bluetooth version: v5.0
Bluetooth profile: HFP, A2DP and AVRCP
Transmission range: ≤ 15 m (without obstacles)
Radio frequency range: 2402 GHz~2480 GHz
Speaker diameter: 40 mm (1.57”) of neodymium
Headphone sensitivity: 110dB±3dB
Impedance: 32 Ω
Response rate: 20 Hz-20 KHz
Microphone
Microphone sensitivity: -58 Db
Battery: Rechargeable Li-Ion; 3.7 V, 250 mAh
Battery autonomy: Up to 15 hours
Stand by time: Up to 300 hours
Charging time: 2.5 hours
Charger interface: Micro-USB
Input voltage: DC 5 V 0.3 A
Warranty: 6 months