FMIIFMS Bluetooth 5.4 Transmitter & Receiver – 2-in-1 Wireless Audio Adapter

One smart, versatile Bluetooth adapter

Meet the FMIIFMS Bluetooth 5.4 Transmitter and Receiver Pro, a compact 2-in-1 wireless audio adapter designed for TV, car, airplane, and home use. In TX mode, it sends audio from wired or non Bluetooth sources to Bluetooth headphones or speakers. In RX mode, it streams audio from non Bluetooth devices to Bluetooth headphones or speakers, with a built-in microphone for hands-free calls. This flexible setup helps you enjoy wireless sound without sacrificing your existing gear, whether you are at home or on the go.

Key advantages at a glance

• 2-in-1 operation with a simple switch and a built-in microphone for hands-free calls.
• Premium wireless tech including Bluetooth 5.4 with aptX Adaptive for a stable connection and low latency where supported.
• Ultra-compact and travel-ready design with a retractable 3.5 mm cable for tidy setups.

Designed for travel and everyday listening

Whether you are on a long flight, a road trip, or relaxing at home, this adapter stays light and discreet in a pocket or bag. It works with AirPods, most Bluetooth headphones, and many wired sources via standard 3.5 mm AUX or RCA connectors.

• Up to 10 hours of use in RX mode and over 12 hours in TX mode on a single charge.
• USB-C fast charging recharges in about 4 hours, so you can keep enjoying wireless audio between adventures.

What you’ll receive and how it helps

Included are essential cables and adapters so you can pair with inflight entertainment systems, TVs, car stereos, or home speakers right away. The broad compatibility provides a universal wireless audio solution for travel and daily use.

Real world usage scenarios

On a plane, pair with headphones for a personal listening experience. In the car, connect to the stereo for a wireless upgrade. At home, convert an older wired system to streaming audio. For gaming or TV viewing, aptX Adaptive helps keep audio in sync with visuals where supported.

What’s in the box

• 3.5 mm AUX adapter
• RCA cable
• Airline adapter
• USB-C charging cable
• User guide

Notes on compatibility: the adapter works with most Bluetooth headphones, AirPods, and Bluetooth-enabled devices. It remains backward compatible with older Bluetooth versions for broad versatility.