M83 Over-Ear Bluetooth Headphone

• Material:PC+ABS
• Noise Isolation:Passive;
• Driver size:40mm
• Impedance:32Ω±15%
• Sound Pressure level:117dB±3
• Frequency Range:20Hz to 20KHz
• Max Distortion:≤3%
• Bluetooth Version:Bluetooth V5.0
• Bluetooth Profile:AVRCP,A2DP,HSP,HFP
• Audio Technology:aptx low latency,aptx,AAC,SBC
• Operation Range:10m,Class 2 
• Microphone:ECM,omni-directional,
  -40dB±3dB
• Controls:Call,Track selection,Volume,

  Siri activation by button
• Battery:400mAh,Lithium polymer type
• Battery Life:20hrs
• Charging interface:Micro USB
• Charging time:2hours
• Dimension:197*155*65.9mm
• Weight:220g