Check to see if the charging wire being used is working – check to use another charging wire or try using the wire on another device

Check if the voltage of the charger is correct for the device, use only 5V 2A chargers.

Check if the charging is done till the red light turns completely blue.

Check if the battery was not tampered with or exposed to any electrical damage.

Check if the charging port is not clogged with dirt. If so, please clean it with a cotton swab.

Please check if the adapter and charging cable support fast charging.

Check for equalizer settings on the connected device.

Test with different media players or devices to see if the issue persists.

Check if the voltage of the charger is correct for the device, use only 5V 2A Chargers.

Check if the device was not subject to any mishandling, broken wires or exposed to direct sunlight or hazards like fire

Unpair/Forget the device and pair it again.

Check if the controls work when connected to a different device.

Check if the media player being used supports such controls.

Check for physical damage or exposure to hazards.

Check if the pairing device has the feature enabled. Google Assistant or Siri should be enabled to use this feature from your device.

Please follow the steps carefully, long press for 2 seconds and release, this should allow Google Assistant or Siri to pop up on the media screen of the device. Though under some circumstance, this feature may or may not work on some devices which may be restricted by default

Try restarting the device.

Perform a factory reset.

Make sure there are no objects between your headphones and your connected device. Try moving your device closer to the headphones to see if the connection improves.

Look closely at the microphone hole for any dirt or earwax. If the microphone seems blocked, gently clean that area.

Use a wall adapter with 5V/2A specifications.

Use a standard cable with 35 strands @0.10mm diameter/strand.

When switched off, press and hold the MFB (Multi-Functional Button) for 3 seconds to switch the headphones on and put them into pairing mode. The headphones will automatically enter in pairing mode with a prompt; the blue and red LEDs will flash alternatively to indicate the same.

Open Bluetooth on your device and search for ‘Rockerz 421 Gen 2’ in the list of available devices.

Once successfully connected, the headphone and phone get connected via Bluetooth indicated by slowly flashing blue LED.

Short press the Volume +/- button in steps to increase/decrease the volume.

There will be a ‘tone’ when the sound volume reaches its maximum.

Short press the MFB (Multi-Functional Button) once to receive an incoming call. There will be a ‘tone’ and the call will get answered.

Short press the MFB (Multi-Functional Button) once to end an ongoing call. There will be a ‘tone’ and the call will end.

Next Track: Press and hold Volume + for 1 second while playing music.

Previous Track: Press and hold Volume - for 1 second while playing music.

Double Press the MFB (Multi-Functional Button) to activate BEAST mode for low latency playtime.

Double Press the MFB (Multi-Functional Button) again to activate music mode from BEAST mode.