B39 Bluetooth Headset – Compatible with Smartphone – Computer – Black

B39 Bluetooth 5.0 Wireless Stereo Headphones Colored Bright In-Ear Headphones Loud Bass Headphones Music Gaming Headphones Sports Headphones
Description : 1. High-fidelity powerful stereo bass sound effect : 40mm membrane speaker , stereo bass to enjoy high-quality music wirelessly . Comfortable fit in the ear : Soft protein leather earplugs and a retractable headband can take some of the strain off your ears . No discomfort to wear for a long time.3 . Comfortable and Foldable : Technical ergonomic design , soft earbuds mimicking the texture of human skin for long-lasting comfort . Wireless and lightweight : Earbuds to enjoy TV and audio without disturbing others . Built-in microphone : Supports hands-free calls and incoming voice report numbers . Featuring the latest enhancement technology for clearer sound in noisy environments . Turn off power forever , wireless and wired : – wireless mode : Built-in 400mAh battery , a single charge can provide up to 8 – 10 hours of music time or talk time ;- Filtered mode : You can also use it as a wired headset and provide an audio cable so that the headset never turns off . Bluetooth 5.0 adopts : Bluetooth 5.0 CSR chipset , low power consumption , excellent compatibility . Compatible with all mobile phones , tablets , laptops , any Bluetooth compatible device or with 3.5mm audio jack . Multi-functional : The headphones have a variety of options for enjoying the pleasure of listening . With a built-in TF card slot , you can load MP3 music with a TF/Micro SD card and listen to songs directly on your headphones . Colored LED Lights : Seven colors transform the breath fresh light to shine anytime , anywhere .
Specifications :

• The Bluetooth version : V5.0
• Support for Bluetooth mode : a2dp 1.2 , avrcp 1.0 , HSP , HSF 1.5
• Frequency : 2.402-2.480 GHz , 2.4G band ISM
• Frequency response : 20 Hz – 20 kHz
• Signal to noise ratio : 70db ;
• Total Harmonic Distortion Rate (THD) 0.1%
• Power indicator : the red and blue lights flash alternately
• Charging the helmet : Rechargeable lithium battery 400mah
• Port of charge : Mini 5 – pin USB charging interface
• Normal charging time : 2.5 hours of conversation : Up to 10 hours waiting time : up to 20 days
• Operating temperature :- 20 ℃ – 55 ℃

Packaging included :

• 1 * earphones
• 1 * charging cable