• BT Mode: Connect to the power supply then set the switch to BT mode position; Turn on the smartphone and search for the device with BT pairing name "GRO1" and then paired them; Plug in the audio cable to audio equipment via AUX
• TF Card Mode: Set the switch to TF card mode, it can play the music in the TF card
• Play Music: After the BT connection, Please insert one end of the audio cable or pin into the audio port of the BT receiver, and connect the other end to the output device to listen to songs or talk with the receiver
• The Colorful Rhythm Lights: This device comes with a colorful rhythm light
• Multi-point Connection: It can connect to two mobile phones at the same time and can switch the audio sources between BT and TF cards

Specifications:

• BT Version: 5.1
• Frequency Range: 2.4GHz
• Output Power Category: Class2
• BT Range: up to 50M
• Working Current: 15~30mA
• Charge Voltage: DC 5V