ACA-i21 Function Instructions
Model: ACA-i21
Brand: Jelanry
1. Pairing (iOS/Android)
Steps:
- Open Bluetooth on your mobile phone.
- Open the earphone charging case and approach the unlocked mobile phone.
- Search for the Bluetooth device "ACA-i21" and tap to connect.
2. Left Earbud Operation
- Pause / Play: Touch twice.
- Previous Track: Press and hold for 2 seconds.
- Voice Assistant: Touch three times.
- Answer / End a Call: Touch twice.
- Reject Call: Press and hold for 2 seconds.
- Turn on / off LED: Touch four times.
3. Right Earbud Operation
- Pause / Play: Touch twice.
- Next Track: Press and hold for 2 seconds.
- Music Mode / Game Mode: Touch three times.
- Answer / End a Call: Touch twice.
- Reject Call: Press and hold for 2 seconds.
- Turn on / off LED: Touch four times.
4. Charge Indicator Status
- When charging: The red light is flashing.
- When fully charged: The lights went out.
5. Function Description
Basic Functions of Headset
- Power on: After opening the charging case cover, the earbuds will start up automatically and match.
- Turn off: Place the earbuds into the charging case and close the cover; the earbuds will turn off automatically.
- Mono Mode: Open the charging case, pair the earbuds with your device. After successful pairing, take out one earbud and close the charging case to use a single earbud.
- Auto connection: The earbuds will automatically connect to the last paired device by simply opening the charging case, provided the pairing record is not cleared.
Basic Functions of Charging Box
- Turn Off LED Indicator: Double-click the button on the case to turn off the LED.
- Turn On LED Indicator: Click the button on the case once to turn on the LED.
- Charging box LED indicator: When opening or closing the charging case, the indicator will flash for 4 rounds. Double-click the button after opening the cover to turn off the indicator. When charging, the red light will keep flashing. When fully charged, the light goes out.
6. Main Parameters
| Parameter | Specification |
|---|---|
| Bluetooth Version | V5.3 |
| Speaker Frequency Response | 20Hz-10KHz |
| Sensitivity | 103±3dB |
| Support Agreement | SBS, AAC |
| Charging Port | USB Type-C |
| Control Method | Touch Control |
| Product Size (charging box) | 54*59*30.5mm |
| Product Weight | 47.5±1g |
| Packing List | Headset, S/L Silicone Tips, Charging Cable, User Manual |
7. Use Attention
- Store the earbuds in a dry and ventilated environment, avoiding contact with oil, water, and steam to maintain product performance.
- Avoid contact with irritating substances, organic solvents, or items containing these ingredients.
- Use the headset correctly. For a smooth connection, it is recommended that the distance between your phone and the earbuds is within 10 meters.
- If there are any issues with the earbuds (e.g., defects, connection problems), do not attempt to repair or disassemble them privately, as this will void the warranty.
- To charge the earbuds, use a standard car charger or a charger specified by Jelanry.
- Ensure the earbuds are fully charged for normal use.
8. Any Problem? Let us know!
If you encounter any issues, please contact the seller through your Amazon account:
Login Amazon Account > Your Orders > Problem with Order > Choose the specific issue > Contact seller
(Instructions also provided in other languages for reference.)
- German: Anmelden Amazon-Konto > Meine Bestellungen > Problem bei Bestellung > Wählen Sie das spezifische Problem > Verkäufer kontaktieren
- Spanish: Iniciar sesión cuenta de Amazon > Sus pedidos > Problema con el pedido > Elija el problema específico > Comuníquese con el vendedor
- French: Identifiez-vous compte Amazon > Vos commandes > Problème avec la commande > Choisissez le problème spécifique > Contacter le vendeur
- Italian: Accedi account Amazon > I miei ordini > Problema con l'ordine > Scegli il problema specifico > Contatta il venditore
- Japanese: アマゾンの口座に登録します > お客様の注文 > 注文の問題 > 具体的な問題を選びます > 出品者に連絡します