• Hi-Fi sound quality: well-designed subwoofer, equipped with Bluetooth-compatible 5.1 protocol, to ensure accurate communication and smooth signal
• Large earmuff design: Highly elastic earmuff design, making the sound clear
• 40mm large drive unit, restore audio output: Equipped with a CD-level 40mm large drive unit, the composite diaphragm responds quickly and dynamically, and better restores audio output
• 4.0cm retractable wearing: According to different sizes of head shapes, adjust the wearing position that suits you

Specification:

• Frequency response: 20Hz~20KHz
• Maximum output power: 20mW
• Working range: about 10m
• Battery voltage: 3.7 V
• Battery capacity: 200 mAh battery without OVP
• Battery charging voltage: DC4.75-5.25V Charging time: about 2H
• Working time: about 10H
• Impedance: 32ohms
• Sensitivity: 100±3dB
• Horn diameter: 40 mm

Note: Not include audio cable.