• CSR: QCC3026
• Master-slave control, touch operation
• Version 5.0, IPX5
• Charging base 550mAh
• Earbuds each 40mAh
• Non-stop playing time: 3-4 hours
• Speaker: Φ7mm
• Impedance: 32Ω
• Sensitivity(SPK): 98±3dB@1KHz
• Earbuds size: 38.0*19.5*24.5mm
• Charing box size: 68.0*68.0*34.0mm