Specification:

• Brand: Hoco
• Model: EW72
• Bluetooth: V5.4 Jerry AC7003
• Support protocol: Headset Hands-free A2DP Avrcp
• Transmission range: 10 meters
• Transmission frequency: 2.4GHz
• Maximum RF output power (EDR): 4DB Modulation type (EDR): GFSK, π/4-DQPSK
• Speaker: 13MM
• Impedance: 32Ω±15%
• Frequency response: 20~20000Hz
• Sensitivity: 98db±3db
• Charging voltage: DC5V
• Charging time: about 1 hour
• Charging box battery capacity: 360mah; left and right ear battery capacity 30mAh each
• Talk time: about 4 hours
• Music time: about 4 hours
• Net weight: 57.6g (including charging compartment); bare device weight: 3.7g (single ear)
• Size: 60.6*45.2*23mm