User Manual for Anko 21TW22 True Wireless Sport Earbuds
Quick guide for Anko 21TW22 True Wireless Sport Earbuds. Learn how to pair, control music, manage calls, charge the battery, and troubleshoot connection issues.
Quick answers from the manual
Quick answer
- The Anko 21TW22 are true wireless earbuds with touch controls. They offer up to 8 hours of music/talk time and require 1.5 hours to charge the earbuds and 2.5 hours for the charging case. p. 2
Key actions
- Pairing: Power on earbuds, they enter pairing mode automatically. Select in Bluetooth menu. p. 2
- Charging: Use USB cable. Earbuds take 1.5h, case takes 2.5h. p. 2
First start
- Charge the earbuds and case fully before first use. p. 2
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Problems and fixes
Put earbuds back in case and take them out, or turn off, press and hold for 8s until power off, and repeat for the other.
p. 2Maintenance and reset
- Resyncing: Turn off, press and hold for 8s until power off, and repeat for the other earbud. p. 2
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Bluetooth Version | V5.0 | Wireless standard | p. 2 |
| Music/Talk Time | Up to 8 Hours | Battery life per charge | p. 2 |
| Charging Voltage | DC 5V | Input power requirement | p. 2 |
Where to find it in the PDF
- Warranty and Safety p. 1
- Operations and Specs p. 2
Table of contents
Quick guide from the manual
The Anko 21TW22 True Wireless Sport Earbuds are designed for wireless audio playback and hands-free calling. This manual covers the essential operations, including pairing, touch controls, charging, and troubleshooting. Ensure you charge the device fully before first use.
Function overview
The earbuds feature touch-sensitive areas for controlling playback and calls:

- Pause/Play: Click either earbud button.
- Next Song: Press and hold either earbud button.
- Previous Song: Press and hold either earbud button.
- Volume Up: Click either earbud button.
- Volume Down: Click either earbud button.
- Power ON: Press and hold for 3 seconds or remove from the charging case.
- Power OFF: Press and hold for 5 seconds or place back into the charging case.
- Phone Calls: Click the button to pick up or hang up; press and hold for 2 seconds to reject a call.
Pairing and connectivity
To pair the earbuds with a Bluetooth device:
- Power on the earbuds; they will automatically enter pairing mode (LED flashes).
- Open the Bluetooth menu on your mobile device and select the earbuds.
- Once paired, you will hear a pairing tone, and the LED will turn solid white.
If the earbuds lose connection to each other, you can resync them by placing them back in the charging case and taking them out, or by turning them off, pressing and holding for 8 seconds until power off, and repeating for the other earbud.
Charging
Use the provided USB cable to charge the device:
- Earbuds: Place in the charging case. The indicator turns red while charging and turns off when fully charged (approx. 1.5 hours).
- Charging Case: Connect the USB cable to a suitable port. The indicator flashes blue while charging and turns solid blue when fully charged (approx. 2.5 hours).
Safety information
- Do not connect to a power supply exceeding 5V DC 1A.
- Avoid exposing the battery to extreme temperatures, low air pressure at high altitudes, or mechanical damage.
- Do not dispose of the battery in fire or a hot oven.
- The apparatus is suitable for mounting at a height of less than 2 meters.
Technical specifications
- Bluetooth Version: V5.0
- Working Distance: 10 meters
- Music/Talk Time: Up to 8 hours
- Standby Time: Up to 45 hours
- Charging Voltage: DC 5V
- Charging Time: Earbuds 1.5 hours, Case 2.5 hours
Manufacturer information
Anko
Practical help
Common problems
Place earbuds back in the charging case and take them out, or turn off both, press and hold for 8s until power off, and repeat for the other earbud.
Ensure the earbuds are powered on and in pairing mode (LED flashes). Check your mobile device's Bluetooth menu.
Before use
- Charge the earbuds fully before first use
- Ensure the charging case is charged
- Keep the earbuds within 10 meters of the Bluetooth device
- Verify the Bluetooth device supports A2DP, AVRCP, or HFP profiles
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Specs in practice
- Bluetooth Version V5.0
- Ensures stable wireless connection and compatibility with modern devices.
- Working Distance 10m
- Maximum range between the earbuds and the connected device.
- Charging Voltage DC 5V
- Use a standard USB charger; do not exceed 5V 1A.
Images and diagrams
- The LED indicator on the earbuds shows pairing and charging status.
- Touch controls are located on the outer surface of the earbuds.
Model compatibility
- Compatible with devices supporting A2DP, AVRCP, and HFP Bluetooth profiles.
Manual page author
David Miller
Documentation analyst