--- product_id: 714358162 title: "Relay - Bluetooth 5.3 Aeroplane Adapter with Qualcomm aptX Adaptive, for 2 AirPods or Headphones, 20 Hours Playback Time, 3.5 mm AUX Jack Transmitter Transmitter for Travel, Gym" brand: "avantree" price: "₩151755" currency: KRW in_stock: true reviews_count: 5 category: "Avantree" url: https://www.desertcart.kr/products/714358162-relay-bluetooth-5-3-aeroplane-adapter-with-qualcomm-aptx-adaptive store_origin: KR region: South Korea --- # Dual headphone connection Bluetooth 5.3 for crystal-clear audio 20 hours nonstop playback Relay - Bluetooth 5.3 Aeroplane Adapter with Qualcomm aptX Adaptive, for 2 AirPods or Headphones, 20 Hours Playback Time, 3.5 mm AUX Jack Transmitter Transmitter for Travel, Gym **Brand:** avantree **Price:** ₩151755 **Availability:** ✅ In Stock ## Summary > ✈️ Elevate your travel sound game—because your ears deserve first class. ## Quick Answers - **What is this?** Relay - Bluetooth 5.3 Aeroplane Adapter with Qualcomm aptX Adaptive, for 2 AirPods or Headphones, 20 Hours Playback Time, 3.5 mm AUX Jack Transmitter Transmitter for Travel, Gym by avantree - **How much does it cost?** ₩151755 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/714358162-relay-bluetooth-5-3-aeroplane-adapter-with-qualcomm-aptx-adaptive) ## Best For - avantree enthusiasts ## Why This Product - Trusted avantree brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Day Battery Life:** Up to 20 hours of uninterrupted audio keeps you powered through flights and workouts. - • **Next-Gen Qualcomm aptX Adaptive:** Enjoy ultra-low latency and premium sound quality with Bluetooth 5.3 tech. - • **Seamless Wireless Audio Anywhere:** Stream in-flight entertainment or gym playlists effortlessly via 3.5mm AUX. - • **Connect Two, Share the Experience:** Pair two AirPods or Bluetooth headphones simultaneously—perfect for travel buddies. - • **Intuitive Controls & LED Indicators:** Easy volume adjustment and pairing status at a glance for hassle-free use. ## Overview The Avantree Relay is a cutting-edge Bluetooth 5.3 transmitter featuring Qualcomm aptX Adaptive technology, enabling dual headphone connections via a 3.5mm AUX jack. Designed for travelers and fitness enthusiasts, it delivers up to 20 hours of high-quality wireless audio streaming from in-flight entertainment systems or gym equipment, with intuitive controls and LED indicators for seamless operation. ## Description Avantree Relay - Premium Bluetooth 5.3 Adapter for Airplane, Supports 2 AirPods or Headphones with aptX Low Latency, 3.5 mm AUX Jack Transmitter Transmitter for Air Travel, TV, Gym, Tablets Review: RECOMMENDED.. Review: muy buena compra, justo lo que necesitaba. ## Features - Wireless audio for travel: Stream audio from in-flight entertainment systems on the plane or fitness equipment to your Bluetooth headphones via the 3.5 mm AUX jack port - perfect for flights and workouts. - Compatible with airpods and top brands: works with AirPods most Bluetooth headphones. Not compatible with mobile phones, speakers or car radios. - Dual head connection: connect two Bluetooth headphones at the same time and enjoy movies or music together. Pairing stability may vary depending on model. - Modern APTX technology and Bluetooth 5.3: Equipped with Qualcomm aptX Adaptive and Bluetooth 5.3 for stable, high-quality audio transmission - supported by Avantree's 20+ years of experience in wireless audio technology. - Intuitive operation and 20 hours battery life: up to 20 hours playback time with LED indicators for power and pairing. Built-in buttons allow easy volume control and dual headphone pairing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DMF9B43L | | Best Sellers Rank | #27,232 in Electronics ( See Top 100 in Electronics ) #302 in Headphone Adapters | | Item model number | BTTC-218 | | Manufacturer | Avantree | | Package Dimensions | 16.51 x 14.6 x 1.9 cm; 127.57 g | ## Product Details - **Brand:** Avantree - **Colour:** gray - **Compatible devices:** Laptop, Smart TV, Tablet - **Data link protocol:** Bluetooth - **Hardware interface:** 3.5mm Audio ## Images ![Relay - Bluetooth 5.3 Aeroplane Adapter with Qualcomm aptX Adaptive, for 2 AirPods or Headphones, 20 Hours Playback Time, 3.5 mm AUX Jack Transmitter Transmitter for Travel, Gym - Image 1](https://m.media-amazon.com/images/I/41nfeBo+8fL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***E on 5 October 2025* RECOMMENDED.. ### ⭐⭐⭐⭐⭐ Review *by M***A on 5 August 2025* muy buena compra, justo lo que necesitaba. ### ⭐⭐⭐⭐⭐ Review *by B***. on 17 January 2026* Ich habe mir den Adapter primär für die Nutzung auf Langstreckenflügen zugelegt. Mein Fazit nach 2 Mittel- (> 3 Std.) und 3 Langstreckenflügen (> 8 Std.): Top! Für mich ist es ein Gamechanger, endlich meine Bluetooth-Kopfhörer (JBL Live Pro 2) mit dem Bordentertainment verbinden zu können - um einerseits Filme in besserer Tonqualität genießen zu können, aber auch eventuelle Störgeräusche ausblenden zu können. Folgende Kriterien waren entscheidend dafür, dass ich mich für den Avantree Relay entschieden habe: - lange Akkulaufzeit: wird mit ca. 20 Stunden angegeben. Kombi aus Mittel- und Langstrecke mit in der Summe je 14-18 Stunden hat das Gerät anstandslos mitgemacht! - schnelles Wiederaufladen: wird mit ca. 20 Minuten angegeben. Ich habe keine Stoppuhr gestellt, aber es geht wirklich verdammt schnell, bis das Gerät wieder einsatzberei ist, nachdem der Akku leer war. - Low Latency-Unterstützung: Ich war im Vorfeld etwas skeptisch, da ich immer wieder von Verzögerungen bei der Ton- im Vergleich zur Bildübertragung gelesen habe. Um diese zu vermeiden, müssen sowohl Bluetooth-Adapter als auch Kopfhörer diese Funktion unterstützen. Bei mir hat das mit dem Avantree in der Kombi mit dem JBL Live Pro absolut einwandfrei funktioniert! - Design und Funktionen: ich empfinde es als praktisch, dass man auch am Adapter eine Möglichkeit zur Lautstärkeregulierung hat. Allgemein ist der Adapter nicht nur klein und leicht, sondern wirkt auch wertig verarbeitet und ist intuitiv bedienbar. In blau passt er sogar farblich zu meinen Kopfhörern! Das war zwar kein Kriterium, ist aber trotzdem nett ;-) Der Artikel war gut verpackt und der Lieferumfang umfasst neben dem Adapter selbst auch noch ein Ladekabel und einen Dual-Aux-Adapter, dazu noch ein kleines Täschchen, in dem sich alles für die Reise perfekt verstauen lässt. Von mir eine klare Kaufempfehlung - ich bin wirklich sehr zufrieden. ## Frequently Bought Together - Avantree Relay - Premium Airplane Bluetooth 5.3 Adapter, Supports 2 AirPods or Headphones with aptX Adaptive, 3.5mm AUX Jack Wireless Audio Transmitter for Planes, Airline, Travel, TV - Bose QuietComfort Bluetooth Headphones, Wireless Headphones with Active Over Ear Noise Cancelling and Mic, Deep Bass, Up to 24 Hours of Playtime, Sandstone --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/714358162-relay-bluetooth-5-3-aeroplane-adapter-with-qualcomm-aptx-adaptive](https://www.desertcart.kr/products/714358162-relay-bluetooth-5-3-aeroplane-adapter-with-qualcomm-aptx-adaptive) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-27*