Customizable sound signatures for balanced, warm, and bright audio is enlightened listening at its finest. RMCE-BT2 The High-Resolution Bluetooth 5.0 communication cable enables wireless communication and controls for Shure Sound Isolating Earphones. A dedicated, premium headphone amplifier provides superior digital listening with support for Qualcomm aptX audio, aptX HD, aptX Low Latency, AAC, and SBC audio codecs. Providing up to 10 hours of immersive audio on a single charge and up to 30 ft. (10 m) of range, the Bluetooth cable comes with a USB charging cable. Features: Premium, wireless audio performance. A dedicated, premium headphone amplifier provides superior, high-fidelity audio quality with wireless capability. Support for multiple codecs. Qualcomm aptX audio, aptX HD, aptX Low Latency, AAC, and SBC enable superior digital audio Featuring Bluetooth 5 Wireless Technology. Bluetooth 5.0 is also backward compatible and will integrate with all Bluetooth sources. Up to 10 hours of play time. Battery allows up to 10 hours of play time with up to 350 hours of standby time and is rechargeable via USB MicroB cable. Compatible with all Shure detachable earphones with MMCX cable connectivity.