Tai nghe bluetooth không dây B39 có đèn led / có giắc cắm PC / thẻ tf cắm được / với hiệu ứng âm thanh loa siêu trầm / giảm tiếng ồn

B39 Wireless 4.1 Wireless Stereo Headphones Foldable Headset Super Bass
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: 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 so the headphones will never power off.
Bluetooth 4.2 Adopt: The Bluetooth 4.2 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.



Descriptions:
Listening to the most beautiful melody, feel the most realistic sound.
Stereo sound, the emjoyment value.
Flexible, can make tensile, folding


Specifications:
Model:B39
Color:Black red／Red black／Pure black／Pure white
Use: wireless headset, voice headset
Bluetooth Version: V4.2
Support Bluetooth Mode: A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5
Frequency: 2.402-2.480GHZ, 2.4G ISM band
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
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℃ - 55℃
Other Features: support status indicator, charge indicator display


Package Included:
1 x Headset
1 x Manual

Note
The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightn