* The Blitzwolf BW-BR4 operating voltage is 3.0-4.2V when the internal battery is below this level, or if you have not used it for an extended period of time, it should be charged first.
* If operated under a low quantity of electricity, the result of damage to the battery or receiver will be caused.
* Make sure recharging BW-BR4 on 5V voltage, 5V higher voltage will damage the battery.
Transmitter and receiver 2 in 1
Transmitter mode: Turn your TV/Computer/Laptop into a Bluetooth-enabled device. You can listen to the audio from your Bluetooth headset and watch a movie or play a game without interfering with anyone.
Receiver mode: Connect the BR3 to your home speaker system/car stereo/headphones and turn it into a Bluetooth audio device. You can then connect your smartphone or other Bluetooth device and play music wirelessly.
CSR8670 Bluetooth Chip
The CSR8670 chip gives you Bluetooth V4.1 and optical audio output for a truly universal wireless solution.
32.8 ft Wireless Connection Range
Built-in antenna, up to 10 meters(32.8 ft) long range and stable transmission to share your audio from indoors to outdoors.
Optical Fiber Transmit
Gives you the option of digital connection to your playback device for maximum audio quality.
Long Standby Time
With a built-in 200mAh battery, you get up to 8.5 hours working time.