The Avantree Audikast 4 is a next‑generation Auracast + Bluetooth TV audio transmitter, designed for users who want private listening, assistive listening compatibility, and stable long‑range wireless audio. Ideal for TVs with Optical or AUX output, this transmitter delivers reliable performance today and future‑proof connectivity for tomorrow.
Auracast Mode Connect to Auracast‑ready headphones, speakers, and selected assistive listening devices (only those shown in the compatibility images).
Classic Bluetooth Mode Works with standard Bluetooth headphones or speakers (one device at a time).
Watch TV at Your Own Volume Enjoy private listening through headphones or compatible hearing devices. Note: TV must have Optical or AUX output. TVs without these ports are not supported.
Optical Output Requirements When using Optical, TV audio format must be set to PCM.
Stable & Future‑Ready Built on Bluetooth 5.4, supports Auracast, and includes USB‑C firmware updates to stay compatible as new devices are released.
Compatibility Warning Auracast works only with Auracast‑ready assistive listening devices. Many devices on the market are not yet compatible — check the list before purchase.
Classic Bluetooth Limitation Classic mode supports one listener only. Multi‑listener sharing is available only in Auracast mode.
Avantree Audikast 4 Transmitter
Optical Cable
AUX Cable
USB‑C Power Cable
User Guide