Wireless Earbuds, Bluetooth 5.2 Headphones Mini Wireless Headphones In Ear with Noise Cancelling Mic, 144H Bluetooth Earbuds with HiFi Stereo Bluetooth Earphones Sport IP7 Waterproof, LED Display

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The last thing you want to do is ruin your warranty by making the problem worse – always make sure you know what you’re doing before you attempt any DIY repairs, otherwise get a professional. When will I need to buy new earbuds?

The charging points for the headphones are dirty, possibly covered with dirt and sweat. Please wipe it off with a cloth. There aremultiple explanations as to why your Bluetooth headphones have suddenly started to malfunction. This is both good and bad. It’s good because a lot of causes usually mean there are many ways on how to fix earbuds. Unfortunately, it can be difficult knowing the exact reason for your earbuds breaking down. The batteries are often completely discharged when you buy them, and they need to charge for a few hours (after the case has been charged fully) before they work correctly. Charging method: Connect to a 5V charging head or computer USB port with the included micro-USB cable. Don’t place them in areas with WiFi, router or other high-frequency transmission devices as it can affect the reception of the earphones. It is the cause of the intermittent sound.If this product has been properly used according to the instructions, and is unable to function normally or damaged within the 6 months period. We will guarantee to replace a new earphone, free of charge. Make sure if your smartphone is connected to two audio devices at the same time.You can switch connections by pressing the multifunction button twice. If you have adjusted the sound on your phone or computer and find that the sound from your Bluetooth earbusd is still too high or too low, it is usually because volume synchronization is not enabled on the connected device. In this case, please adjust the sound through your Bluetooth earbuds.

When charging, please do not cover the blanket and clothes on the charging compartment. When the USB cable is damaged or the terminal is inserted abnormally, please do not use it. The Bluetooth communication distance is 10m. Please make sure there is no large obstacle between earphones and the phone. Please keep the smartphone and earphones close to use. If the connection problem is not resolved, please try to restart the bluetooth device and the earphone. If you have a brand new set of wireless earbuds that are refusing to turn on, two common problems occur:Power OFF: The earphone will automatically close and start charging when put it into the charging case. When charging, the red light is on. Alternatively, press the MFB button for 5 seconds. Don't place them in areas with WiFi, router or other high-frequency transmission devices as it can affect the reception of the earphones. It is the cause of the intermittent sound. In the case of connecting to other smartphones, the earbuc searches for the connected device by default, and needs to wait about 2 minutes before connecting to the new phone. Please make sure that your smartphone’s network connection is working or that the song is still being buffered.

Excessive volume for a long time will stimulate the ears and have a negative effect on hearing. Please avoid overly loud volume as it might damage your hearing. Please raise the volume up slowly.The insulating film is applied to the charging point to prevent battery power leakage of earphone during transportation. Please remove the insulating film before use.

If you hear the “Battery Low” notification, charge the earbuds. Please charge the case immediately when the LED display of the charging case is below “10”.Be careful not to run out the power of the earphone and charging case. It may shorten the life of the lithium-ion batteries built in. There could be too much ambient radio interference or strong magnetic field.These environments can affect Bluetooth connection. If you hear the "Battery Low" notification, charge the earbuds. Please charge the case immediately when the LED display of the charging case is below "10".Be careful not to run out the power of the earphone and charging case. It may shorten the life of the lithium-ion batteries built in.Press the MFB of both headphones for about 8 seconds, when you see both earphones’LED light up at the same time, then release it. If the goods need to be repaired due to personal reasons, the freight shall be borne by the customer. Please make sure that there is no problem with the charging cable or the charging adapter and that the charging cable is inserted correctly. tom WwW YlmF CoM MCL Shenzhen KingAnDa Technology Development Co Ltd YYK 520 Bluetooth headset 2AOZM 2AOZMYYK520 yyk