Non-working/defective product
- X3 Pro: Both earbuds cannot charge
- X3 Pro: Both earbuds cutting in and out
- X3 Pro: Not found by source device
- X3 Pro: No sound from both earbuds connected to the device
- X3 Pro: Both earbuds are charging, but not turning on
- X3 Pro: One earbud cutting in and out
- X3 Pro: One earbud doesn't charge or turn on
- X3 Pro: One earbud cannot connect
- X3 Pro: One earbud has no sound
- X3 Pro: Muffled, distorted sound
- X3 Pro: Very loud / quiet sound, lack of bass / treble
- X3 Pro: Short battery life
- X3 Pro: Microphone issue
- X3 Pro: Different volume/sound in two earbuds
- X3 Pro: Defective charging case
- X3 Pro: Defective charging cable
- X3 Pro: Other issue