อัลตร้าไร้สาย

ไม่มีเสียง

• Make sure the headphones are charged and connected to your bluetooth device. 
• Press play to make sure audio is playing.
• Your volume may be at 0%. Increase the volume to a level that suits your preference.

No Sound from One Side

• Make sure the headphones are charged and connected to your bluetooth device. 
• Press play to make sure audio is playing.
• Reset the headphones. You can follow the instructions from “How to Reset”

คุณภาพเสียงไม่ดี

• Make sure the headphones are charged and connected to your bluetooth device. 
• Make sure the headphones fit securely on your ears.
• Try different sound output settings on your device or music app.
• Reset the headphones. You can follow the instructions from “How to Reset”
• Plug in a 3.5mm jack into your headphones and into your audio device.