When charging the charging case, the indicator is off
• Please ensure the case is correctly connected with power source.
No sound
• 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.
The call quality of the earbuds is bad.
• 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.
When playing music, cannot control pause/play/previous track/next track via the earbuds.
• Please ensure the paired device support AVRCP (Audio/Video Remote Control Profile) profile.