B39 Headphones Wireless Headset Bluetooth 5.0 Colorful LED …, Mandai

????????Features:
???? HiFi Powerful Bass Stereo Sound Effect:
40mm diaphragm speaker drivers, deep bass stereo sound, enjoy the wireless high quality music
???? Comfortable Over-Ear Fit:
Soft protein leather earpad and retractable headband lifts the burdens for your ear. No discomfort after long-time wearing.
???? Comfortable and Foldable:
Technical ergonomics design with soft earmuffs simulated to human skin texture, ensure long lasting comfort
???? Wireless and Lightweight:
Ear Pad headphones for enjoying extended listening of TV and audio—without disturbing others
???? Built in Microphone:
supports hands-free call and voice reporting incoming call number. With the latest enhanced technology makes you voice sound clearer in noisy environments
???? Ever Power Off, Both Wireless & Wired:
-The wireless mode: A built-in 400mAh battery provides up to 10-hr 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.
???? 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
???? 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.
???? Colorful LED Light:
Seven-color transform cool breathing light, shine everywhere, anytime.

????????Specifications:
✨ Name:B39
✨ Use: wireless headset, voice headset
✨ Bluetooth Version: V5.0
✨ Support Bluetooth Mode: A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5
✨ RF Performance: receiver sensitivity: -84dBm; transmit power up to 4dBm
✨ 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: Mini 5-pin USB charging interface
✨ Normal Charging Time: 2.5 hours
✨ Talk Time: up to 10 hours
✨ Standby Time: up to 20 Days
✨ Operating Temperature: -20°C - 55°C
✨ Other Features: support status indicator, charge indicator display