HT4189 - Power & Charging Related

Bluetooth Transmitter

• NO built-in battery
• Use the provided USB cable to power up
• Suggested power source specification: 5V /0.5-2A

Send us an email at support@avantree.com if you need a free wall-plug adapter.

• Power On / Off
• Power On – Switch On
• Power Off – Switch Off

Wireless Headphones

• Charging methods - Insert the provided USB-C cable.
• Battery – 550mA built-in rechargeable Lithium polymer battery
• Battery Charge Time – 3.5H
• Battery Life – 40H(NOTE: continuous music playback at 60% volume level)
• Indicators
  • Charging - LED on the headset turns RED.
  • Fully charged - LED on the headset turns off.
• Power On / Off
• Power On: Press and hold the MFB for 3-5s until you hear "Welcome to Avantree" (Before T22F1); Slide the power switch to "ON"  (T22F1 and after)
• Power Off: Press and hold the MFB for 3-5s until you hear "Goodbye" (Before T22F1); Slide the power switch to "OFF" (T22F1 and after)

Note: Starting from Batch number T22F1, the charging port on the HT4189 headphones has been changed to a Type C port.