IPX5 Waterproof
- With IPX5 waterproof technology, Bluetooth headphones can easily resist sweat, Water and raindrops.
- Perfect for sports, Fitness, Running, Hiking, Yoga, Travelling, Driving or other outdoor activities to use these wireless earphones.
Power display
- Check the remaining power of the headset in real time.
- The battery level of the headset will be displayed in the upper right corner of the phone, so that we can charge the headset in time.
Pairing for the first time
- Start bluetooth on your smartphone, search for the available device "X21" and click on it.
- The headset will automatically connect to your smartphone's Bluetooth without pairing the second time you use it.
Easy operation with one hand
Song feed: (Click the left ear button three times quickly)
Next song: (Click the right ear button three times quickly)
Play / Pause Music: (Click the MFB button)
If you want to answer an incoming call: (Click the MFB button) (Same operation on left and right)
If you do not want to answer the incoming call: (touch for 2 seconds) (same operation on left and right)
Reject call: (Press the MFB button for 2 seconds or say "NO")
Redial: (Double-click the MFB button to automatically call the last caller)
English, Chinese (switchable)
(Bluetooth switch off required) Take the earphones, the red and blue lights will flash. Press the button twice in quick succession.
caution:
The "quick charger" cannot be used while charging. All charging
adapters with the QC mark cannot be used.
Bluetooth connection intermittent, unable to connect? Please charge the earphones for one hour before receiving the goods for the first time to avoid problems such as false dead earphones causing disc.
Single headphone size: 1.3 * 1.6 * 2.0cm
"Invisible" meaning: Due to its close proximity to skin color, it is difficult to detect when used.
 Invisible Earbuds |  Invisible Earbuds |  Invisible Earbuds |  Invisible Earbuds |  Smallest Earbuds | |
|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — |
| Price | — | — | — no data | — | — no data |
| Invisible Mini Earbuds | ? | no data | ? | ? | ? |
| Touch | no data | no data | ? | no data | ? |
| Smallest Earbuds | no data | no data | no data | no data | ? |
| Charging Case | 350mAh | 350mAh | 1200mAh | 260mAh | 350mAh |
| Purchase | 32.98 | 29.98 | 33.98 | 21.98 | 32.98 |
- How to Enable Microphone Audio : Click the headset to answer calls while activating the microphone function. For optimal audio pickup, it is recommended to use the headset in a quiet environment and adjust the volume to a slightly higher level.
- What to Do If Bluetooth Pairing Fails? : This is often due to a drained battery. After receiving the product, charge it for 1.5 hours. Note: Do not use a fast-charging adapter or cable.
IPX5 Waterproof
- With IPX5 waterproof technology, Bluetooth headphones can easily resist sweat, Water and raindrops.
- Perfect for sports, Fitness, Running, Hiking, Yoga, Travelling, Driving or other outdoor activities to use these wireless earphones.
Power display
- Check the remaining power of the headset in real time.
- The battery level of the headset will be displayed in the upper right corner of the phone, so that we can charge the headset in time.
Pairing for the first time
- Start bluetooth on your smartphone, search for the available device "X21" and click on it.
- The headset will automatically connect to your smartphone's Bluetooth without pairing the second time you use it.
Easy operation with one hand
Song feed: (Click the left ear button three times quickly)
Next song: (Click the right ear button three times quickly)
Play / Pause Music: (Click the MFB button)
If you want to answer an incoming call: (Click the MFB button) (Same operation on left and right)
If you do not want to answer the incoming call: (touch for 2 seconds) (same operation on left and right)
Reject call: (Press the MFB button for 2 seconds or say "NO")
Redial: (Double-click the MFB button to automatically call the last caller)
English, Chinese (switchable)
(Bluetooth switch off required) Take the earphones, the red and blue lights will flash. Press the button twice in quick succession.
caution:
The "quick charger" cannot be used while charging. All charging
adapters with the QC mark cannot be used.
Bluetooth connection intermittent, unable to connect? Please charge the earphones for one hour before receiving the goods for the first time to avoid problems such as false dead earphones causing disc.
Single headphone size: 1.3 * 1.6 * 2.0cm
"Invisible" meaning: Due to its close proximity to skin color, it is difficult to detect when used.
Invisible Earbuds | Invisible Earbuds | Invisible Earbuds | Invisible Earbuds |  Smallest Earbuds | |
|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — |
| Price | — | — | — no data | — | — no data |
| Invisible Mini Earbuds | ? | no data | ? | ? | ? |
| Touch | no data | no data | ? | no data | ? |
| Smallest Earbuds | no data | no data | no data | no data | ? |
| Charging Case | 350mAh | 350mAh | 1200mAh | 260mAh | 350mAh |
| Purchase | 32.98 | 29.98 | 33.98 | 21.98 | 32.98 |
- How to Enable Microphone Audio : Click the headset to answer calls while activating the microphone function. For optimal audio pickup, it is recommended to use the headset in a quiet environment and adjust the volume to a slightly higher level.
- What to Do If Bluetooth Pairing Fails? : This is often due to a drained battery. After receiving the product, charge it for 1.5 hours. Note: Do not use a fast-charging adapter or cable.