• Bluetooth 4.1 technology, super bass HiFi stereo sound quality output
  

• The improved neodymium driver brings awesome sound quality

• Support both wireless mode and wired mode

• Built-in 550mAh rechargeable battery, 20 hours long standby time

• Soft earmuffs and adjustable headband for comfort fit and long time wearing
  

• Built-in microphone enables hands-free calling

• Foldable design, space-saving, convenient carrying

• A carrying case is provided to take it anytime and anywhere with you
  

Specification:

• Brand: LANGSDOM
  

• Mode: BT20

• Bluetooth Version: Bluetooth 4.1

• Work distance: 10 meters 

• Standby time: about 20 hours 

• Charging time: about 2~3 hours

• Impedance: 16Ω

• Sensitivity: 90dB

• Frequency response range: 20~20000Hz

Compatible with:

• iPhone iPad

• Samsung Sony LG Huawei etc. Bluetooth enabled smartphones or tablets