1. Check whether the charger matches, you need to use the original charger, the use of a non-original charger may cause the power supply to be unable to be normally

2. Check whether the charger is damaged, you can replace the charger of the same specification for testing, if it is damaged, you need to replace it with a new charger for use

3. Check whether the charging interface is in good contact

4. Check whether the battery is damaged

1. Check whether the original charger is used, the general charging time is 6-8 hours, and test after full charge

2. Check whether the battery is aging or damaged and cannot store power, if it is damaged, it needs to be replaced with a new battery

3. The use environment and method will affect the battery life, for example, using it in a low temperature environment will lead to a decrease in battery output power and actual usable capacity, shortening the battery life, and using it in the case of high volume or complex audio processing, the battery consumption will also be accelerated

4. If you exclude the usage method and environmental factors, the replacement battery still does not store power, or the battery life is poor, it may be an internal hardware failure, please contact the official after-sales inspection and repair

1. Check whether the speaker has power, you can plug it in for a test

2. If you use Bluetooth to play on your mobile phone, you can disconnect Bluetooth and reconnect, or you can restart the speaker and playback device, or replace it with another mobile phone for testing

3. Replug the USB flash drive or audio cable to make sure the interface is in good contact

4. If it is a video speaker, the network speed may be too slow, you can try to switch to other networks

Find the "Input Selection" button on the audio panel, press and hold this button for 3-5 seconds, and the device will prompt the voice to turn on or off

1. Prepare the standard OTG live broadcast cable of the audio in advance, if the mobile phone is a Type-c or Apple interface, you need to prepare the corresponding adapter cable, and you need to prepare monitoring headphones 2

. Turn on the speaker, plug one end of the OTG cable into the "OTG live broadcast" interface of the speaker, and connect the charging port of the mobile phone at the other end, some models can also be plugged into the corresponding live broadcast cable to connect to the mobile phone

3. Connect the accompaniment mobile phone, turn on the Bluetooth of the mobile phone to pair with the audio, After successful pairing, the accompaniment sound played by the mobile phone will be transmitted to the speaker

4. Adjust the volume of the device and the volume of the live broadcast to the appropriate size, if you are afraid of disturbing the people, you can insert the monitoring headphones into the headphone jack of the speaker, and some models can switch the monitoring mode by pressing and holding "previous song" or "microphone priority", the speaker is muted in the monitoring mode, and only the headphones make a sound

1. U disk direct recording: After the audio is turned on, insert the USB flash drive into the USB port of the speaker, switch to the audio input mode, click the audio recording button, use the microphone to start recording, and press the input selection or record button to exit the recording mode

2. Mobile phone internal recording: When the audio has an internal recording function, prepare the live broadcast cable corresponding to the mobile phone interface, insert the live broadcast port or OTG, Type-C interface of the audio at one end, and connect to the mobile phone charging port at the other end , adjust the volume of the device and the volume of the live broadcast to the appropriate size, and finally turn on the mobile phone to record with its own camera or karaoke software

Find the "Microphone Priority" button on the audio panel and press it to turn it off

1. Video audio: prepare an HDMI cable, plug into the HDMI interface of the speaker at one end, connect to the HDMI interface of the TV at the other end, and switch the signal source to the corresponding HDMI interface with the TV remote control

2. Non-video audio: If the TV only has an ordinary audio interface, use the red and white double lotus audio cable, insert the TV audio output with the corresponding color, and connect the 3.5mm AUX input interface at the other end; If it is a digital coaxial output, use a 3.5mm coaxial cable, plug in the TV coaxial output at one end, connect the audio AUX interface at the other end, and then switch the audio to AUX mode

1. Wired series: one of them as the main speaker, use a 3.5mm audio cable, one end is plugged into the headphone output port of the main speaker, and the other end is connected to the audio input/AUX interface of the secondary speaker, and the secondary speaker is switched to audio input/AUX mode after connection

2. Wireless series connection (only models with TWS function): Turn on both speakers and switch to Bluetooth mode; Click the "TWS" key, the blue light flashes to indicate that it has entered the TWS pairing mode, and the two machines will automatically start to connect and pair