Brand: TENGOO.
Model: TG20.
Technical Specifications:
- A2DP/HFP/HSP/AVRCP.
- Connections: Bluetooth
- version: v5.1.
- Compatibility: iOS and Android.
Features:
- Voice assistance.
- Water resistance.
- LED screen displaying battery level.
- Fast charging.
- Music and call transmission.
- Transmission range: 10M-15M.
Battery:
- Frequency: 2.4GHz.
- Charging time: up to 2 hours.
- Charging type: USB charger.

Not connected state: Once the earbuds are turned on, Bluetooth is always in the searching state. After opening the app, go to “Add device” and click “Start searching”, then select and click on the name of the corresponding earbuds device to successfully pair the earbuds with the phone. Using voice assistant: When using the earbuds, tap the right earbud to access the voice assistant.