2 in 1 INNOVATIVE DESIGN HEADSET: Thanks to the innovative design, Chronus Q9 headset has wired and wireless dual-mode. it is designed to be a professional gaming headset, but at the same time, it can be used as bluetooth wireless headset. Bluetooth function can be used in many situations except games, such as listening to songs, watching movies, making calls , etc.PROFESSIONAL GAMING HEADSET: Connect the gaming headset and your PS4, Xbox One, PC or Nintendo Switch with the 3.5mm detachable audio cable, its a professional gaming headset in wired model. Noise canceling microphone ensure the clarity of talking between teammates. 40mm large aperture driver provide 7.1 surround sound effects. The gaming headset can make you feel the movement of enemies at any time and experience immersive gaming experience.EXCELLENT BLUETOOTH OVER EAR HEADSET: Use the bluetooth to connect your phone, PC, ipad and the bluetooth wireless headset, you can enjoy music, movies at any time and any where in bluetooth wireless model. As a bluetooth headset, it has a wonderful noise reduction function. With Stereo sound effect and 40h playtime, the headset ensure the stability and fidelity of the sound when using.MAXIMUM COMFORT: Bluetooth headset has a high-quality built-in microphone and NFC technology. The CSR chip realizes stable, high-quality and lossless audio transmission, ensuring the stability and fidelity of the sound. Rotatable ear cups and adjustable headband can meet the needs of different head types. Skin-friendly protein leather ear cushions and headband provide extra comfort, improved bass response and better noise isolation.IMPORTANT NOTE: Note 1: The detachable audio cable needs to be plugged when playing game, please make sure your device is 3.5mm jack, otherwise you need to add an adapter. Note 2: The headphone has a built-in microphone, it can only be use when making a call. Note 3: The headphone has an LED on-off key, you can turn the lights on / off according to your preferences.