Non-working/defective product
- X1: Both earbuds cannot charge
- X1: Both earbuds cutting in and out
- X1: Not found by source device
- X1: No sound from both earbuds connected to the device
- X1: Both earbuds are charging, but not turning on
- X1: One earbud doesn't charge or turn on
- X1: One earbud cutting in and out
- X1: One earbud cannot connect
- X1: One earbud has no sound
- X1: Very loud / quiet sound, lack of bass / treble
- X1: Muffled, distorted sound
- X1: Short battery life
- X1: Microphone issue
- X1: Different volume/sound in two earbuds
- X1: Defective charging case
- X1: Defective charging cable
- X1: Other issue