Why Choose us? Lightweight DesignPlug and PlayEasy operation button Recommended Uses: TV / DVD with optical, RCA or AUX audio outputAV receiver & other audio devicesFor no audio delay, long music play time (10H) and long range Doesn't work / not recommended for: When using the transmitter the TV internal speakers might not work or become muted. This is TV dependentDolby / DTS is not supported. When using TV optical out, MUST set audio format to PCMNot for TVs with non-functional audio output ports (test before purchase)Not compatible with ANY RCA outputs on the back of AV Receivers / amplifiers.Not for professional audiophiles .Attention - Designed & built for a balanced sound with an emphasis on clarity. NOT recommended for heavy bass enthusiasts. Big button to easy operate Custom fit for comfort User-friendly design – simple & easy to use Adjustable headband Power & Charge You have 2 charging options available. 1. Charge the headset by placing it on the base (please make sure the charging pins of the headset and the base are in the correct contact!) 2. Charge the headset directly via the USB charging port on the headset with the included USB adapter. *The lights of the headphones and base will be Red when charging and will go Off when charged fully. Please make sure the headphones are fully charged before using them! Long Wireless Disdance With 2.4GHz wireless RF technology, you could get a long range of up to 197ft (60M) working distance, ensuring the audio and image perfect synchronization without delay, even through walls, ceilings and outdoors. Multi-purpose Transmitter In addition to transmitting audio signals from a large range of audio sources, the Ensemble transmitter is also the most convenient way to charge your headphones when not in use. Supports 3 Different Types of Audio Output Thanks to MONODEAL'S Optical, RCA input cables, it is universally compatible and works with all TVs with Optical/RCA/AUX Audio Output port on the market for your convenience.