Avantree Oasis Plus 2 Bluetooth 5.3 TV Transmitter

This compact Bluetooth transmitter from Avantree lets you wirelessly stream TV audio to Bluetooth headphones or speakers using optical (TOSLINK) or 3.5 mm AUX outputs, making it easier to watch late-night shows without disturbing others. It supports aptX-Adaptive for low-latency, higher-quality sound when paired with compatible headphones, and includes a remote for adjusting headphone volume from across the room.

Key Points

The Avantree Oasis Plus 2 connects to TVs via optical or AUX outputs and adds wireless audio capability for headphones and speakers. It offers lip-sync performance with aptX-Adaptive when used with compatible headsets, and supports a wireless range up to 50 m (164 ft) in open spaces according to the manufacturer. The unit also raises optical output volume by up to +6 dB to address low-level audio from some TVs. A simple infrared remote lets you control headphone volume without touching the source device. Additionally, passthrough functionality allows the TV audio to continue to a soundbar while you listen on wireless headphones.

Technical Specifications

• Name: Avantree Oasis Plus 2
• Connectivity: - Optical (TOSLINK) and 3.5 mm AUX input
• Bluetooth version: - 5.3
• Codec support: - aptX-Adaptive (low latency), SBC
• Range: - Up to 50 m (164 ft) in open space
• Volume boost: - Optical input up to +6 dB

Usage Recommendations

For best latency performance, pair the unit with headphones that explicitly support aptX-Adaptive and place the transmitter in a position with minimal physical obstruction from the listening area. When using optical output from some TVs that send low-level signals, enable the Oasis Plus 2’s volume boost to reach comfortable listening levels. If you want to listen on a soundbar and headphones at the same time, enable passthrough so the external speaker continues playing while the transmitter sends audio to your wireless headset. Consider room layout and Wi-Fi/other wireless devices when planning placement to preserve range and reduce interference.

Positive Aspects

The remote volume control is convenient for True Wireless earbuds that have no master volume on the source. The +6 dB optical boost is a practical solution for TVs with quiet optical outputs, and passthrough keeps the home theatre setup flexible. Note that aptX-Adaptive benefits require compatible headphones, and real-world range will vary depending on walls and obstacles.