1. UPDATE WITH POWER ON/OFF BUTTON - This KM24 is upgraded with a manual switch, which you can use to turn off the device, and prevent some car battery from being drained out. 2. SUPER WIDE COMPATIBILITY -This Nulaxy KM24 car FM transmitter works with most Bluetooth enabled devices, like iPhone, iPad, iPod, Tablet, Smartphones or MP3, MP4 Players via 3.5mm audio jack. 3. CRYSTAL SOUND QUALITY - KM24 FM transmitter utilizes most advanced interference and noise cancellation technology, to achieve best quality sound.

【Super Long Range】Bluetooth Class 1 (the range up to 160 feet in open air) -- No annoyances of limited distance anymore! You can freely listen continuous music at any corners of your home without interruption, ideal for big houses, villas, offices, conference rooms or any other large indoors places, and even outdoors (with a portable charger for power supply). ★ Based on the latest CSR chip with aptX codec, you will enjoy the high resolution pure sound it delivers. 【Transmitter + Receiver】The Bluetooth adapter is a transceiver designed for 2-way high quality remote audio streaming. It brings new life to traditional electronics like home speakers, wired headphones to receive wireless music from cellphones, tablets, laptops, etc. It also can be a transmitter for TV, computers, etc. to connect those Bluetooth enabled system like Bluetooth speakers, Bluetooth earphones. Small, simple as it is, this black gadget is lightweight, durable and magical. 【No Lip Sync Delay】Built-in aptX Low Latency codec (aptX LL) offers only slight delay about 40 milliseconds for smooth audio transmission. You can comfortably enjoy high clarity stereo sound while watching TV, Movie, Video, or focus on your lag-free online game playing without wires dangling when using hands free earphone. Specially, it also supports aptX LL under receiver mode (RX). ★ Note: Low latency is effective only when pairing with aptX LL supported Bluetooth devices.