LED B39 headphones

Description:
1. HiFi Powerful Bass Stereo Sound Effect: 40mm diaphragm speaker drivers, deep bass stereo sound, enjoy the wireless high quality music.
2. Comfortable Over-Ear Fit: Soft protein leather earpad and retractable headband lifts the burdens for your ear. No discomfort after long-time wearing.
3. Comfortable and Foldable: Technical ergonomics design with soft earmuffs 
4. Wireless and Lightweight: Ear Pad headphones for enjoying extended listening of TV and audio
5. Built in Microphone: supports hands-free call and voice reporting incoming call number. 
6. Ever Power Off, Both Wireless & Wired: 1. The wireless mode: A built-in 400mAh battery provides up to 10-hr music time or talking time in a single charge; 2. The Wired mode: you can also use it as a wired headphone with the provided audio cable ( 3.5 mm audio cable need to prepared yourself ). so the headphones will never power off.
7. Bluetooth 5.0 Adopt: The Bluetooth 5.0 CSR Chipset, lower power consumption, superior compatibility.
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. 

8. Colorful LED Light: Seven-color transform cool breathing light, shine everywhere, anytime.
 

Specifications:
Bluetooth Name：B39
Bluetooth Version: V5.0
Battery capacity：400mAh lithium battery
Charging Time: About 2.5 hours
Frequency: 2.402-2.480GHZ
RF Performance: receiver 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: Red and blue lights alternately flashing

Package Include:
1 x Headphone

1 x USB Cable