Specification:

• Bluetooth version: 5.3 (Jieli AC6973D4)
• Support protocols: A2DP, HFP, AVRCP
• Battery capacity: 30mAh*2 (without protection board but IC)
• Battery capacity of charging case: 300mAh (with protection board)
• Charging time: 1.5H
• Talk time: 4.5H
• Play time: 5H
• Standby play: 300H
• Horn parameters
• Diameter: 10mm
• Sensitivity: 97±3dB
• Impedance: 32Ω±15%, at 1KHz
• Mic parameters
• Sensitivity: – 39dB±2
• Impedance: 150Ω
• Maximum transmission distance: 10M
• Bandwidth: 100KHz-5KHz
• Voice prompt: supported
• Multi-point connection: unsupported
• Wearing method: in ear
• User manual: Chinese and English
• Interface: Type-C
• Waterproof rate: IPX5
• ENC depth (Fourl mic for call): ＞- 35dB