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  Bluetooth v2.0 + EDR compliant
  BH18 Bluetooth headset whose main used material is metal, it is extremely thin - 4mm thickness and very light; its weight doesn't exceed 5.5 grams

  Bluetooth specification v2.0 + EDR class 2
  RF frequency range: 2.4 to 2.480GHz, 2.4G ISM band
  Radio performance: receive sensitivity of -90dBm, TX power 4dBm maximum
  Supports Bluetooth, headset, and handsfree profiles
  1 button design: MFB
  LED indicator status: blue and red
  Rechargeable battery: 55mAh Li-polymer
  4 pin A type USB plug, can be directly inserted into the PC USB PORT charge
  Charger adapter output: 5V DC and 200mA
  Nominal charging time: 1.5 hours maximum
  Talk time: up to 3 hours
  Standby time: up to 50 hours
  Dimensions (main body): 49.3 x 15.8 x 4mm
  Operating temperature: -10 to 50℃
 

Storage temperature: -20 to 80℃

  Box : standard or customization
  User manual : x1
USB cable: x1 car charger and travel charger is upto the customer choice