Avantree Relay vs beyerdynamic DT 770 PRO 80 Ohm: Which Should You Buy?

For day-to-day use, the DT 770 PRO is the simplest: plug it into a 3.5mm jack (or use the included 6.35mm adapter) and you’re ready. There’s no charging, pairing, or device memory to manage.

The Avantree Relay scores extremely well for setup/usability and many users find pairing straightforward, but there’s more “process” involved: you must pair Bluetooth headphones (sometimes two), and multiple reviews mention it’s easy to forget the button steps if you don’t use the device often. For frequent travelers who use it regularly, that’s less of an issue.

The Avantree Relay design is about convenience: compact, pocketable, and meant to plug directly into a 3.5mm jack for flights. Its practicality comes from being small and simple rather than offering physical comfort (since it’s not worn).

The DT 770 PRO design centers on ergonomics for long sessions: over-ear closed-back cups, a padded adjustable headband, and velour pads. The trade-off is bulk and a long fixed cable, which can be less convenient outside a desk or studio environment.

The DT 770 PRO has the edge in perceived and scored build quality, with strong construction feedback and a robust, professional product design approach. Customer reviews often describe it as well constructed, though durability comments are mixed and some mention plastic cracking over time.

The Avantree Relay uses an ABS enclosure and is built for portability. Reviews generally call it solid and travel-ready, but its build and durability scores sit below the DT 770 PRO, reflecting a more lightweight accessory design rather than a long-term “workhorse” headphone.

DT 770 PRO is often described as robust, but durability feedback is mixed: some buyers say it’s built to last, while others report cracking plastic within a year. That mix is reflected in its durability scoring.

Avantree Relay is a small travel accessory with mid-range durability scoring. Reviews generally treat it as sturdy enough for travel, but it’s not described with the same “built for years of studio use” framing as the DT 770 PRO.

Avantree Relay is the more portable option by far: compact, pocketable, and explicitly reviewed as easy to carry for flights, with an excellent portability score.

DT 770 PRO is portable in the sense that you can take it with you, but it’s a full-size over-ear headphone with a long attached cable. For commuting or air travel where space and cable management matter, it’s less convenient than the small transmitter.

Avantree Relay is feature-driven for travel: dual-headphone pairing, aptX Adaptive support (listed), battery operation, and a plug-in form factor for 3.5mm sources. It’s a functional “upgrade” for seatback systems and other wired outputs that lack Bluetooth.

beyerdynamic DT 770 PRO focuses on core headphone features: closed-back isolation, replaceable velour ear pads, a rugged adjustable headband, and a single-sided 3 m cable, plus a 6.35 mm adapter for broader wired compatibility. It’s less about smart features and more about consistent monitoring-oriented listening.

Avantree Relay scores very highly for setup and many reviews describe fast pairing, but it’s worth practicing once before a trip. Multiple customers mention that remembering the pairing steps (and avoiding interference from phone Bluetooth during pairing) can be important for a smooth experience.

DT 770 PRO setup is immediate: connect via 3.5mm (or use the 6.35mm adapter). If volume is low on a weaker output, the “setup” adjustment may be adding an amp/DAC, as some reviewers describe.

DT 770 PRO lists compatibility with many common devices (desktops, laptops, TVs, car audio systems) thanks to standard wired outputs, and it includes a 6.35 mm adapter. The main compatibility caveat is drive requirements at 80 ohms: some sources may benefit from an amp/DAC.

Avantree Relay is more restricted by design. The listing explicitly warns it’s not for TVs, phones, or hearing aids and is intended to pair with Bluetooth headphones/earbuds from a 3.5mm source (airplanes being the key example). If your primary source isn’t a 3.5mm jack, check fit carefully.

beyerdynamic DT 770 PRO is the clear leader for audio quality. It has an excellent audio score and strong review sentiment around tight bass, crystal clear detail, and a balanced presentation, plus isolation that supports focused listening.

Avantree Relay is best judged as a transmitter. Reviews frequently call the audio clear and stable on flights, and aptX Adaptive support is listed, but final sound quality depends on the headphones you pair and whether you experience latency or pairing quirks with your specific earbuds/headphones.

Avantree Relay wins on wireless connectivity features because it is a Bluetooth transmitter and supports pairing two headphones at once. Its connectivity score is strong, and reviews often mention quick pairing and stable connections in typical travel scenarios.

DT 770 PRO uses wired connectivity (3.5mm plus 6.35mm adapter). While it lacks wireless convenience, wired connections avoid Bluetooth pairing complexity and can reduce variables like dropouts or wireless latency. For a straightforward wired chain, it remains highly practical.

Avantree Relay is battery-powered with a listed runtime up to 25 hours and a listed charge time of 2 hours. Review comments commonly support long-flight endurance, though some users report shorter real-world time depending on usage.

beyerdynamic DT 770 PRO does not use a battery (wired), so there’s no runtime limit or charging requirement. If you want to avoid battery management entirely, the DT 770 PRO has the advantage.

Avantree Relay is battery-powered and positioned for long playtime per charge, which supports good practical efficiency for travel use. Exact power consumption isn’t provided, but reviews commonly align with all-day flight usage.

DT 770 PRO does not consume battery power. Any “power efficiency” considerations relate to the source device’s ability to drive 80-ohm headphones; some users may raise volume or use an external amp/DAC depending on their setup.

Avantree Relay scores higher on value, largely because it solves a specific pain point (wireless use with airplane 3.5mm systems) and adds dual-headphone sharing, while earning strong usability and satisfaction feedback.

DT 770 PRO also scores well for value in a different way: buyers frequently describe it as worth the price for its audio quality, isolation, and comfort. If your goal is serious listening/monitoring rather than travel convenience, its value proposition can be stronger despite a lower value score than the Relay.

beyerdynamic leads on brand trust scoring and is positioned as a professional audio manufacturer with a long-standing studio reputation in reviews and product framing. That can translate to higher buyer confidence for monitoring headphones.

Avantree is well-regarded in this product’s review base for travel-focused Bluetooth accessories, with strong satisfaction and frequent “works well on international flights” feedback. Brand trust scoring is solid, though lower than beyerdynamic here.

DT 770 PRO has higher customer satisfaction signals overall: a higher star rating (4.6/5) and a very large review count, with repeated praise for sound quality, comfort, and isolation. The most notable recurring concern is mixed durability feedback.

Avantree Relay also performs strongly with a 4.3/5 rating across thousands of reviews and high satisfaction scoring, with common praise for flight usefulness, easy setup, portability, sound quality, and battery life. The key recurring negative is that latency can vary for some users.

Warranty/support detail is not provided for either product in the data. The available scoring suggests both products are relatively weak in warranty/support compared to other categories, but without explicit policy information, the safest approach is to check the seller/manufacturer warranty terms and return window before buying—especially if you need dependable travel support or long-term studio use.