Product details :

• BT chip: AD6973A4
  
• BT audio decoding: SBC / AAC
  
• Support protocols: HSP/HFP/A2DP/AVRCP
  
• Speaker sensitivity: 116 ± 3dB
  
• Microphone sensitivity: - 42 ± 3dB
  
• Frequency response: 20Hz-20KHz
  
• Battery capacity: 70mAh
  
• Speaker impedance: 32 Ω
  
• Rated power: 2mW
  
• Speaker: Φ 10mm
  
• Music time: 14H
  
• Talk time: 12H
  
• Standby time: about 120H
  
• Input: DC 5V/1A
  
• Vehicle-mounted input port: Type-C
  
• Headset charging input port: Micro
• Product name: Single side Business
  
• Bluetooth headset
  
• Model: JR - B02S
  
• Way to wear: in-ear
  
• Bluetooth: V5.1
  
• Bluetooth audio decoding: SBC /AAC
  
• Supported protocols:
  
• HSP/HFP/A2DP/AVRCP
  
• Horn sensitivity: 116±3dB
  
• Microphone sensitivity: -42 ± 3dB