X3s

• Please ensure the case is correctly connected with power source.

• Check if the earbuds are operating.
• Check if the earbuds volume is at an appropriate level.
• Check if the earbuds are correctly connected with mobile phone.
• Check if the earbuds are operating within a normal working range.

• Check if mobile phone is in an area with strong signal. • Please ensure the earbuds are within effective distance (10m) and no obstacle between the earbuds and mobile phone.

• Please ensure the paired device support AVRCP (Audio/Video Remote Control Profile) profile.