GORSUN E94 Wired+Wireless Dual Use Bluetooth-compatible Headset with Microphone Volume Control Bass Sound Headphones

• Equipped with Bluetooth-compatible 5.0 protocol, ensure accurate communication and smooth signal
• Equipped with CD-class 40mm large drive unit, the composite diaphragm responds quickly and dynamically to better restore the sound source output
• Support A2DP/AVCTP/AVRCP/HFP and other protocols
• Equipped with detachable 3.5mm audio cable, wired and wireless dual-use
• Built-in microphone, supports HD calling
• Large earmuffs design, soft and comfortable to wear

Specifications:

• Frequency response: 20Hz~20KHz
• Maximum output power: 20mW
• Working range: ≈10m
• Battery voltage: 3.7V
• Battery capacity: 300mAh (rechargeable lithium battery)
• Battery charging voltage: DC4.75-5.25V 
• Charging time: ≈ 2H
• Working time: ≈10H
• Impedance: 32Ω
• Sensitivity: 100±3dB
• Horn diameter: 40mm