Pure Monster Sound & 3 Music Modes: Monster Wireless Over-Ear Bluetooth feature 3 EQ modes based on Pure Monster Sound. Press the EQ button to cycle between Voice/Class/Jazz modes and enjoy music time. Bluetooth 5.4 & 60H Battery Life: Equipped with Bluetooth 5.4 for faster, more stable connections, the large battery capacity of the headphones eliminates battery anxiety. Comfortable & Foldable Design: Monster over-ear headphones feature skin-friendly PU leather and an elastic sponge for comfort. The adjustable headband and 60° rotating earmuffs ensure a perfect fit, making them an ideal gift for Christmas, Valentine's Day, and more. 40MM Dynamic Drivers & AI Call Noise Cancellation: Monster noise cancelling headphones use a built-in microphone to intelligently filter ambient noise, and 40MM dynamic drivers give you a unique experience. AI Call Noise Cancellation ensures clear calls without background distractions. 40MM Dynamic Drivers & AI Call Noise Cancellation: Monster headphones use a built-in microphone to intelligently filter ambient noise, and 40MM dynamic drivers give you a unique experience. AI Call Noise Cancellation ensures clear calls without background distractions. Monster Mission 200 Bluetooth Headphones, Wireless Over-Ear Bluetooth with 3 EQ Modes,60H Playtime, Low Latency HiFi Stereo Foldable Lightweight Headset, Deep Bass for Home Office Cellphone PC Ect