1. Easy to make a phone call using 360-degree sound pickup technology with a samping frequency range of 30-16000HZ can steadily convert sound into electronic signals and sound clear without noise.
2. Comfortable ear cover good anti-noise function the inner part of the ear cover is made of soft sponge and leather. The silent stereo sound experience.
3. Built-in lithium battery up to 10 hours of talk time 250 hours of standby time easy to use.

Product parameters:
Product Type: Bluetooth Headset
Pei Dai style: head-mounted
Function Use: Wireless headset voice headset
Bluetooth version: V4.0
Bluetooth mode support: A2DP 1.2 AVRCP 1.0 HSP HSF 1.5
Frequency: 2.402-2.480GHZ 2.4G ISM band
RF performance: Receive sensitivity: -84dBm; transmit power up to 4dBm
Frequency response: 20 Hz - 20 KHz
Signal to noise ratio (SNR): 70Db;
Total harmonic distortion rate (THD) 0.1%
Power indicator: blue light
Headphone charging: rechargeable 400MAH lithium battery
Charging port: mini 5-pin USB charging interface
Normal charging time: about 2.5 hours
Call duration: up to 10 hours
Standby length: up to 250 hours
Operating temperature: -20oC - 55oC
Other features: Support status indicator charging indicator display
Product accessories: headphones USB charging cable manual
Product packaging size: 17.5*9*13CM