Description 1. IMPRESSIVE SOUND QUALITY: This is a Blue headphone with a 40mm large-diameter aperture driver and a highly detailed microphone. The wide frequency range reproduces a precise deep base and high-clarity sound. You can expect a comfortable listening experience for both music playback and phone calls. 2. STAY COMFORTABLE: The memory protein ear pads simulate human skin texture for lasting comfort. With the stainless steel slider and soft-padded headband, you'll find the perfect fit with no restrictions and great durability. 3. NEVER SWITCH OFF, WIRELESS AND WIRED: The wireless mode: A built-in 1000mAh battery provides up to 24 hours Music time / 15 hours of talk time in a single charge. 2. The Wired Mode: You can also use it as a wired headphone with the included audio cable, so the headphones never turn off. 4. Take your tunes with you: The space-saving, foldable design not only saves space, it makes it also wearable. Best choice to study, work, travel. 5.Blue headphones suit modern city lifestyle for everyone no matter you are office worker or college student, teenager or girl. Devices with all types of smartphones, tablets, computers or music players. 6.ColourBlack & GoldSilver & WhiteCool BlackWhite & Pink