The RRADIO IR-SIGMA headphones are the ideal choice for those who want first-class listening pleasure, whether individually or shared. Designed as additional headphones for the IRRADIO IR-SIGMA PLUS set, allows multiple users to listen simultaneously to the same TV source, providing an immersive and customizable sound experience. It is perfect for watching movies, watching sporting events, or even listening to music late at night without disturbing others. Equipped with two wireless 2.4GHz and Bluetooth 5.3, it can also be used in stand-alone mode with smartphone, tablet, PC and smart TV or in wired mode via 3.5mm jack. With a range of up to 30 metres in unhindered environments, it offers maximum freedom of movement. The battery life is 4.5 hours, with a fast charge via USB-C in just 1-2 hours. The sound quality of the Bluetooth headphones is ensured by the 40 mm wide-band speakers and the selective equalizer (film, music, spoke), which ensures a clear, deep and faithful sound. The adjustable balance between right and left channels allows for a tailored listening experience even for people with different listening needs. Comfortable and lightweight (only 225g), with large and enveloping ear cups, the IRRADIO IR-SIGMA wireless headphones are perfect for long sessions of use. Ideal for home and outdoor use. They are designed for those who don't want to sacrifice quality, versatility and design.