InLine Airplane Bluetooth-audiotransmitter, BT 5.0, aptX HD/LL

The InLine Bluetooth Audio Transmitter (BT 5.0, aptX HD/LL) wirelessly forwards in-flight entertainment audio to Bluetooth headphones in high quality. It supports common one-, two- and three-pin aircraft audio systems via two 3.5 mm plugs and provides a USB Type-C connection for USB audio when connected to a computer. The transmitter has an integrated 180 mAh rechargeable battery and is supplied with a 900 mAh charging case, enabling extended operation away from fixed power sources.

Advantages

The device uses Bluetooth 5.0 with support for aptX, aptX HD, aptX Low Latency, SBC and AAC to deliver improved audio quality and reduced latency. It can pair with one or two Bluetooth headphones simultaneously and offers up to 20 meters of wireless range. USB audio mode supports 48 kHz/16-bit sampling without additional drivers on Windows, macOS and Linux. The compact plastic enclosure and light weight make the transmitter and its charging case easy to carry.

Suitable for

• Passengers who want to use personal Bluetooth headphones with aircraft audio systems
• Streaming Bluetooth audio from portable players or computers with 3.5 mm output
• Use cases requiring low-latency audio (watching video, in-flight entertainment)

Key specifications

• Bluetooth version: 5.0 (aptX, aptX HD, aptX LL, SBC, AAC)
• Bluetooth profiles: A2DP, AVRCP, GAIA, HSP, HFP
• Bluetooth range: up to 20 m
• Inputs: 2× 3.5 mm audio plugs, 1× USB Type-C (PC USB audio)
• Outputs: Bluetooth, supports 1 or 2 Bluetooth headphones simultaneously
• USB audio: 48 kHz / 16-bit, driver-free on Windows/macOS/Linux
• Batteries: Transmitter 180 mAh, Charging case 900 mAh
• Battery runtime: up to 6 h (transmitter), up to 30 h with charging case
• Power input: USB Type-C DC 5 V 500 mA (transmitter and case)
• Operating temperature: -10 °C to 45 °C; Storage: -20 °C to 60 °C
• Enclosure: plastic; Colour: black
• Dimensions (adapter): 5 × 3.9 × 1.5 cm; (case): 8 × 5 × 3.1 cm
• Weight: adapter 20 g; charging case 60 g
• Scope of delivery: adapter, charging case, 1 m USB A to USB C cable, operating instructions

How to use

Connect the two 3.5 mm plugs to the aircraft audio sockets or connect the USB Type-C plug to a computer to use USB audio mode. Turn on the transmitter and enable Bluetooth pairing on your headphones; the transmitter can connect to one or two Bluetooth headsets. Charge the transmitter via the USB Type-C port or store it in the charging case to recharge the internal battery. When using away from the aircraft, plug the 3.5 mm jack into any device with a stereo output to stream Bluetooth audio from that source.

Recommendations

For best results, fully charge both the transmitter and the charging case before use. When low latency is required (video or gaming), choose aptX Low Latency if supported by your headphones. Keep the transmitter and headphones within 20 meters and avoid obstructions for stable Bluetooth connection.