NIA S4000 Foldable Over Ear Music Headset Wireless Bluetooth Stereo Music Earphone with Microphone

With the features of BT 4.2 technology, 3.5mm Audio Port, built-in Microphone and Speaker, TF Card MP3 Player, Hands-free call, and FM Radio, the Headphone is a super companion for you during daily life and travel.    

• Equipped with features of BT connection, TF card music playing, AUX-IN wired music playing, FM radio, and hands-free call with Microphone
  

• With the BT4.2 function, easy to pair with almost all the BT-enabled audio devices, freely to enjoy wireless music and hands-free calls

• Connect to the audio devices (such as MP3/MP4, Laptop, etc) without BT function via the 3.5mm audio cable (NOT included)

• Built-in 250mAh rechargeable battery lasts up to 10 hours of music playing time per charge cycle

• Adjustable headband length, foldable soft leather ear cushion, comfortable to wear, and easy for storage

• HD microphone reduces ambient noises and grasps the detail of voice. You can get high-quality hands-free phone conversation

Specifications:

• Brand Name: NIA

• Model Number: S4000

• BT Version: 4.2

• Support Profiles: A2DP/ACRCP

• Operation Range: 10 meters (no obstacle)

• Frequency Response: 20Hz-20KHz

• Impedance: 32?

• Sensitivity: 108±3dB

• FM Frequency: 87.5-108MHz

• Music Format: MP3, WMA, WAV

• Speaker Unit: 40mm

• Battery Capacity: 250mAh (depends on music volume)

• Working Time: about 10 hours

• Standby Time: about 200 hours

• Charging Time: about 2 hours

• Charging Port: Micro USB

• Item Size: approx. 19.6*17.3*8.2cm/7.71*6.81*3.22in

• Item Weight: 222g/7.83oz