2.4GHz wireles headphones, built in FM radio, extremely clear and powerfull sound in PLL technology, perfect for home HI-FI and cinema. Looking really good headphones to use with Hi-Fi or TV? So the ideal proposal for you are REGULUS MT3551 headphones, offering highly detailed sound and the freedom that gives you applied wireless technology. Carefully designed construction and the highest quality of headphones make contact with the music more enjoyable than ever. REGULUS headphones offer an incredible sound while watching movies as well as listening to music and all of this is possible at a distance up to 50 meters from the source of sound - without unnecessary wires - no limits, no compromise! The additional advantages of headset are the built-in FM radio with auto scan, dual power supply and ability to charge built-in rechargeable battery from the loading base. Quality of REGULUS headphones is undoubtedly the most important issue, but we also took care of their stylish appearance in order to be well presented at your desk with all your hardware. Features - Stereo wireless headphones - Transmission frequency: 2,4-2,48 GHz - Modulation: digital - Max transmission power: 9,9 dBm - Operational range: up to 50m - Dual, interference free antenna - FM Radio with autoscan - FM Radio tunning band: 87,5 - 108 MHz - Frequency response 22Hz - 20kHz - Digital volume control and power switch - Up to 8 hrs operation time (depends of distance, environment and personal habits) - Power: for headphones built in lithium battery or 2xAAA alkaline batteries, for base 3 x AAA alkaline batteries or 5V power adaptor - Headphones weight:260g (without battery) NOTE. Batteries and rechargeable batteries are not included!