Bluetooth V4.1 Music Audio Receiver Adapter AUX Kit . Enjoy wireless music anytime, say goodbye to wired device worry less about wires and stream your audio entertainment from your bluetooth-enabled device with perfect sound one key control, easy to use turn on, connect bluetooth devices, receive mobile or other bluetooth device's audio signal with one press support bluetooth v4.1 bluetooth 4.21 technology ensures a faster data transmission rate and much more stable connection between a bluetooth device and the audio receiver. The bluetooth range up to 10 meters. Superior acoustics, crisp clear sound the bluetooth audio receiver provides high signal to noise ratio and low distortion signal, good transient response, and high audio , built-in battery, plug and play built-in rechargeable lithium battery, provides up to 4 hours' working time, plug and play, and only takes 50 minutes to fully charge it. Dual-link connection.
Specifications:
*Bluetooth version: 4.1+EDR
*Receiving distance: 10 meters
*Talking time: 4 hours Continous music playback
*Charging time: 50 minuters
*Microphone sensitivity:+-42db
*Output power: 30mW
*Range of frequency response: 20Hz-20KHz
*Multifunction Button
*Middle button: Answer or Hang up call or Pause
*Left Button: Volume- / Previous song
*Right Button: Volume + / Next song
*Charging: Red LED light up when charging, and it shut off while fully charged.
*Charging Time: Need about 60-70mins from fully dead to full charged.