M-F9 Single Ear Wireless Bluetooth-compatible 5.3 Earhook Headset Sports Running Music Earphone - Black

• The unique 90° adjustable rotation angle design can adapt to different auricles. When you wear it, you only need to gently turn it to find a comfortable wearing angle that suits you
• Liquid silicone earhook molding process, adjustable stretch, suitable for all ear shapes, allowing ears to breathe freely and more comfortably
• Through its own directional sound transmission technology, sound transmission is accurate and efficient, and the sound reaches the ears clearly, reducing sound leakage and improving the privacy of call listening
• Call noise reduction ENG algorithm, enhanced noise reduction technology, dual microphone directional radio, you can make clear calls in noisy environments and enjoy a high-quality communication experience

Specification:

• Bluetooth-compatible version: 5.3+EDR
• Transmission distance: 10 meters
• Talk time: about 15 hours
• Listening time: about 15 hours
• Headphone battery: 75mAh
• Wireless frequency: 2.4GHZ
• Support protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3
• Charging voltage/current: 5V/1A
• Charging time: about 1 hour
• Standby time: 120 hours
• Speaker impedance: φ14mm 32Ω
• Mic sensitivity: 42db±3db