B39 Bluetooth Wireless Headphones With Noise Cancellation-Red

B39 Bluetooth Wireless Headphones With Noise Cancellation-RedExtra bass Wireless Bluetooth HeadphoneBluetooth Wireless Headphones For PC And All SmartphonesWireless Bluetooth 5.0 Stereo HeadsetFoldable Wireless Bluetooth Headphone With 3.5mm Audio
Specifications:
Bluetooth Version: V5.0
Support Bluetooth Mode: A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5
Frequency: 2.402-2.480GHZ, 2.4G ISM band
Frequency Response: 20 Hz - 20 KHz
Signal to Noise Ratio (SNR): 70Db;
Total Harmonic Distortion Rate (THD): 0.1%
Power Indicator: Red and blue lights alternately flashing
Headset Charging: rechargeable 400MAH lithium battery
Charging Port: USB charging interface
Normal Charging Time: 2.5 hours
Talk Time: up to 10 hours
Standby Time: up to 20 Days
Operating Temperature: -20℃ - 55℃
Description:
1. HiFi Powerful Bass Stereo Sound Effect 
2. Comfortable Over-Ear Fit
3. Comfortable and Foldable
4. Wireless and Lightweight
5. Built in Microphone
6. Ever Power Off, Both Wireless & Wired: 
The wireless mode: A built-in 400mAh battery provides up to 8-10hr music time or talking time in a single charge. 
The Wired mode: you can also use it as a wired headphone with the provided audio cable so the headphones will never power off.
7. Bluetooth 5.0: 
The Bluetooth 5.0 CSR Chipset, lower power consumption, superior compatibility. Compatible for all the mobile Phone, Tablet PC, Notebook, any devices with bluetooth function Or has A 3.5mm Audio Jack.
8. Multi-Functions: 
headsets have several options for listening enjoyment. Built in TF card slot and you can use a TF/Micro SD card with loaded MP3 music and listen to the songs directly on your headsets. 
9. Colorful LED Light: 
Seven-color transform cool breathing light, shine everywhere, anytime.
Package Included:
1* Headphone
1* Charging Cable
1* 3.5mm AUX Audio Cable
1* User Manual