Duet - Charging Guide

Before You Start: Charging problems may be caused by poor contact with the charging base, a faulty cable or power source, or a battery issue.

Step 1 – Check the Charging Base

1. Connect the base to a 5V USB wall charger.
2. Place both headphones on the base. Adjust their position until the charging contacts touch and the red charging light appears.
3. Check whether the charging lights appear.
4. Try a different USB cable, charger, and wall outlet.

Step 2 – Clean the Charging Contacts

1. Unplug the charging base and gently clean the metal contacts on the headphones and base with a dry, soft cloth.
2. Place the headphones back on the dock. Adjust their position until the charging contacts touch and the red charging light appears.

Step 3 – Headphones Won't Turn On?

1. Leave the headphones charging for 30–60 minutes, especially if they have not been used recently.
2. Remove them from the base and turn them ON.
3. Check whether they power on normally.

Step 4 – Battery Drains Too Quickly?

1. Fully charge both headphones.
2. Test their battery life under similar conditions.
3. Check whether one headphone loses power much faster than the other.

Still Not Working?

If the headphones still won't charge or turn on, contact Avantree Support. Tell us whether one or both headphones are affected and whether their charging lights turn on.