IRRADIO IR-SIGMA PLUS is a high-quality wireless set for anyone looking for an immersive, powerful and uncompromising sound experience. It consists of a wireless headset with Bluetooth 5.3 technology and a dedicated receiver, ideal for movies, TV series, concerts, sporting events and gaming sessions with crystal clear and detailed sound - whether on the TV or on projectors. The 2.4GHz transmission ensures a stable and lag-free connection for perfect synchronization between audio and video. Thanks to the analogue (3.5 mm jack) and optical digital inputs (Toslink/SPDIF), the headphones are compatible with most modern devices without sacrificing sound quality. One of the strengths of the system is the ability to listen together thanks to multi-user technology. You can add multiple compatible IR SIGMA headphones so that multiple people can enjoy the same content at the same time. The listening experience is fully customizable: Choose the equalizer that best suits your content type (movie, music, spoken) and adjust the right and left channels to fit your listening preferences perfectly. The result is a balanced and enveloping sound that ensures maximum fidelity for movie and music content. Thanks to the dual wireless 2.4 GHz and Bluetooth V5.3 technology, the Bluetooth headphones can also be used on the go: indoor, outdoor or on the go, you can connect to your smartphone, tablet or PC. In addition, you can connect two BT headphones to the same source to listen wirelessly for two. Practical, lightweight, modern design and equipped with a durable battery, the IRRADIO IR-SIGMA PLUS charges quickly via USB-C and is always ready to use. A versatile and comprehensive product for anyone who wants to experience sound without limits.