
Is Relay Right For You?
BEST FOR
- Airplane seatback entertainment
- Gym equipment and devices with a 3.5 mm audio output
- Using your own Bluetooth headphones or earbuds
- Sharing audio with 2 Bluetooth headphones simultaneously
NOT FOR
- TV, car audio systems, or musical instruments
- Devices with HDMI, Optical, or USB-only audio outputs
- Using as a Bluetooth receiver
- Hearing aids without standard Bluetooth audio support
Compatible With
Audio Sources (3.5 mm Audio Jack)
- Airplane entertainment systems, tablets, laptops, gym equipment, and other 3.5 mm audio devices
Bluetooth Audio Devices
- AirPods, Bluetooth headphones, earbuds, speakers, and other Bluetooth audio devices

Frequently Asked Question
Q1: How can I connect the Relay with my headphones?
A1: 1. Plug the Relay into airplane jack; 2.Turn it on and press and hold the pairing button until the LED flashes red and blue; 3.Put your Bluetooth headphones in pairing mode. (not just powered on); 4. Wait until the Relay LED turns solid blue – connection successful. Note: If you need help, scan the code on the product for a quick pairing guide.
Q2: Why won’t my headphones connect to Avantree Relay?
A2: Most likely, your headphones are still connected to another device such as your phone. Please turn off Bluetooth on your phone or other devices first. Then, make sure both the Relay (red-blue flashing) and your headphones are in pairing mode. Once your headphones are free, they’ll pair automatically within seconds.
Q3: Can I connect two headphones at the same time?
A: Yes, you can pair two Bluetooth headphones to share audio simultaneously.
Q4: Can I use it with my phone or tablet?
A: No, it's a transmitter only, it doesn't receive audio from phones or tablets.
Q5: How is this different from other adapters?
A: It uses a Qualcomm premium chip for better sound, stable connection, low latency, and broad headphone support, unlike basic models with limited performance.
Specifications
COMPARISON TABLE
Is Relay Right For You?
BEST FOR
- Airplane seatback entertainment
- Gym equipment and devices with a 3.5 mm audio output
- Using your own Bluetooth headphones or earbuds
- Sharing audio with 2 Bluetooth headphones simultaneously
NOT FOR
- TV, car audio systems, or musical instruments
- Devices with HDMI, Optical, or USB-only audio outputs
- Using as a Bluetooth receiver
- Hearing aids without standard Bluetooth audio support
Compatible With
Audio Sources (3.5 mm Audio Jack)
- Airplane entertainment systems, tablets, laptops, gym equipment, and other 3.5 mm audio devices
Bluetooth Audio Devices
- AirPods, Bluetooth headphones, earbuds, speakers, and other Bluetooth audio devices

Dual Link
The Relay’s intuitive LEDs allow you to easily connect up to two audio devices and share the audio.
Included Adapter
Connect to any plane with the double 3.5mm adapter – no need to purchase separately.
Extended Playtime
A battery life of up to 25 hours provides sufficient battery life to last you through any flight.
Frequently Asked Question
Q1: How can I connect the Relay with my headphones?
A1: 1. Plug the Relay into airplane jack; 2.Turn it on and press and hold the pairing button until the LED flashes red and blue; 3.Put your Bluetooth headphones in pairing mode. (not just powered on); 4. Wait until the Relay LED turns solid blue – connection successful. Note: If you need help, scan the code on the product for a quick pairing guide.
Q2: Why won’t my headphones connect to Avantree Relay?
A2: Most likely, your headphones are still connected to another device such as your phone. Please turn off Bluetooth on your phone or other devices first. Then, make sure both the Relay (red-blue flashing) and your headphones are in pairing mode. Once your headphones are free, they’ll pair automatically within seconds.
Q3: Can I connect two headphones at the same time?
A: Yes, you can pair two Bluetooth headphones to share audio simultaneously.
Q4: Can I use it with my phone or tablet?
A: No, it's a transmitter only, it doesn't receive audio from phones or tablets.
Q5: How is this different from other adapters?
A: It uses a Qualcomm premium chip for better sound, stable connection, low latency, and broad headphone support, unlike basic models with limited performance.
Specifications
| Bluetooth Version | V5.3 |
|---|---|
| Supported Bluetooth Profiles | A2DP, AVRCP |
| Supported Audio Codecs | aptX, aptX Adaptive, aptX HD, aptX Low Latency, SBC |
| Play Time | 25 Hours |
| Charging Time | 2 Hours |
| Audio Latency | aptX: ~120ms; aptX HD: ~200ms; aptX Adaptive: ~80–110ms; aptX LL: ~40ms; SBC: ~220ms |
| Input Voltage / Current | DC 5.0V / 500mA~2A |
| Operating Range | Up to 33ft / 10m |
| Product Dimensions | 125mm x 24mm x 12mm |
| Product Net Weight | 15g |
COMPARISON TABLE
![]() Avantree Relay | ![]() Avantree Relay | ![]() Avantree SoundJet R1 | ![]() Avantree Voyager |
|---|---|---|---|
| Customer Reviews | |||
| — | — | — | — |
| Price | |||
| — | — | — | — |
| Supported Audio Codecs | |||
| aptX-Adaptive/HD, aptX, SBC | aptX-Adaptive/HD, aptX, SBC | aptX-Adaptive/HD, aptX, SBC | aptX Adaptive & HD, SBC,LC3 |
| Included Dual AUX Adapter | |||
| ? | ? | ? | ? |
| Built-In Volume Controls | |||
| ? | ? | ? | ? |
| Dual Link | |||
| ? | ? | ? | ? |
| Playtime | |||
| Up to 25hr | Up to 25hr | Up to 25hr | Up to 15hr |
| Special Feature | |||
| 4 battery level LED indicators | 4 battery level LED indicators | Compact with glossy finish | OLED Screen |










































