Folding Music Bluetooth Earphone Support TF Card

Folding Music Bluetooth Earphone Support TF Card
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 :
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 pack size: 17.5*9*13CM