Bluetooth audio receiver converts your non-Bluetooth-enabled audio 
devices into wireless music playback
Upgrades older devices to Bluetooth 5.0
High quality when making calls in hands-free mode
Bass booster to amplify the low frequencies
Gain mode for noise reduction
Built-in 300mAh rechargeable battery for 6.5 hours of music
Supports all audio devices with 3.5mm jacks such as.B headphones, 
headsets, speakers or car stereo systems
Range: Up to 10m
Built-in microphone
LED indicator for battery charge and Bluetooth connections
microSD card supports MP3 and WAV formats up to 16GB
Cable length: 50 cm
Color: Black
Weight: 0.01 kg
Height: 1.4 cm
Width: 2.5 cm
Length: 5.5 cm