Highlights:

• Type-C jack: Insert into mobile phone’s Type-C port (iPhone requires Type-C to Lightning Adapter)
• Receiver Indicator: Insert the receiver to the mobile phone, the red and blue lights will flash alternately, indicating that the receiver and transmitter are pairing. The red light is always on indicating the transmitter and receiver are paired and working.
• Button Long press to turn on/off the microphone (red and blue themes, short press to mute/unmute the microphone. Red and blue lights flash alternately, red light always after paired flash alternately when muted) it occurs.
• Built-in 50mAh Li-Poly battery for 4 hours of operation. Charges via USB (AC adapter or power bank – not included)
• Transmitter Indicator Power On: Red and Blue lights flash. Charging red lig h alternately, indicating transmitter and receiver. Working Status: The red light is always on, indicating the transmitter and receiver are paired and working HT is on, while when it is full