• Super cool style, enhances your taste
  

• Wired or wireless mode, connecting with Bluetooth or audio line
  

• Using bluetooth 4.0 smart chip, stable signal
  

• Supports MP3 audio format music playing and FM radio function

• Support TF card with maximum 16G(not included), you can enjoy music to your heart's content

• Built-in microphone, you can connect the earphone via the audio cable to the computer to enable the online chat 

• Built-in 320mAh lithium battery, long standby time
  

• Adjustable headband for comfortable and custom fit
  

• Widely compatible with iPhone, iPad, iPod, Samsung, HTC, MP3, MP4 etc. devices

Specification:

• Model: BT09

• Bluetooth: Version 4.0

• Card supported: TF card/Micro SD card(maximum 16G)
  

• Frequency response: 20Hz-20KHz

• Speaker unit: Φ40mm

• Impedance: 32Ω±15% at1KHZ

• Sensitivity: 100±3dB at 1mw 1kHz with IEC318

• Audio port: 3.5mm

• Battery capacity: 320mAh

• Cable length: 1.5m±5%

• Music playing time: 5-8 hours

• Talking time: 5-8 hours
  

• Standby time: 30 hours

• Charging time: 1.5-2 hours

• Charging voltage: DC 5V

• Working voltage: 3.1-4..2V

Compatible with:

• iPhone 6s plus

• Samsung Galaxy S7 edge

• Huawei Mate 9

• Sony Xperia X Performance

• MP3/MP4

• Other devices with Bluetooth fuction or with 3.5mm audio jack