GB-30 Quick Guide

Double click Siri/Google assistant

Single press play/pause

Single press volume up Hold for next song

Single press volume down Hold for previous track

Auto bluetooth connection Power on/off



Battery status is shown when you sync your mobile phone with Bluetooth.

When the battery is lower than 20%,a "Battery low”alert will pop up.

Charing voltage is 5V; there is a red light during the charging; blue light is on after a full charge of 90 minutes.

Built-in 80 mah polymer lithium battery, 2-3 hours playtime depends on volume.

Please keep the magnetic pin away from meral.



Bluetooth Version:Bluetooth 5.0

Bluetooth Protocol:HFP/HSP/AVRCP/SPP/A2DP

Bluetooth Range:UP to 20 meters

Transmission Grade:Lossless Transmission After the initial pairing, the Bluetooth will connect automatically

Auto power off if no connection for 5minutes



Switch on to activate, the device automatically enters the Bluetooth pairing mode, red and blue lights flash; voice prompt “pairing”is provided.

Search ”Mutrics GB-30"  on the Bluetooth list with your mobile phone, click to connect.The indicator light goes off once they are successfully paired, voice prompt “paired”is provided.



Single tap D-pad to answer the call

Double tap D-pad to reject the call

To answer another call during a talk single tap to hang up the current call