How to Turn On, Reset, and Pair Anker soundcore Sleep Earbuds 4(D1303)

How to Turn On

1. The earbuds automatically turn on only when the charging case is fully opened.

2. For first-time use, remove the insulating film from the earbuds, place them in the charging case, and fully open the charging case lid once to turn them on.

How to Reset

1. Open the charging case, place the earbuds inside and leave the charging case open.

2. Press and hold the Reset button on the back of the case for 10 seconds.

3. After resetting, the case indicator flashes rapidly to indicate pairing mode. Once pairing is complete, the indicator switches to a slow breathing pattern.

How to Pair

1. Press and hold the charging case button for 3 seconds to enter pairing mode.

2. The internal indicator flashes rapidly, staying on for 200 ms and off for 200 ms repeatedly.

3. If the earbuds are not connected within 5 minutes, the indicator turns off automatically and pairing mode ends.

 

If you need further assistance, please reach out through the official support channel.

 

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