FREE APP TO CONTROL HEADPHONES - Please note that the APP function only works in the wireless mode. APP enable you switch among Bluetooth, TF Card and FM Radio mode at random, set the headphones EQ, know about the playlist in the TF card, the saved radio stations. You can add or delete, play, pause, choose the last or next song and radio stations, adjust the volume and change playback mode. All information at a glance, the free APP take your hands off the buttons on the headsets. IMPRESSIVE SOUND QUALITY - Designed for an excellent music experience, these bluetooth headphones over ear built-in 40mm neodymium driver together with the best CSR chip and the around-ear cushion design, providing a well-closed and immersed environment for your ears. Enjoy the stereo hi-fi sound like the perform in front of you, just lose yourself in the music with these bluetooth headphones wireless. BUILT TO STAY COMFORTABLE - The super soft over ear cushion simulate human skin texture which are covered in skin-friendly synthetic leather to ensure lasting comfort no matter how long you listen. Designed with stretchable headband, snug and cushioned earpads, the bluetooth headphones for kids allows you to find the perfect fit without constraint. This wireless headset hence are ideal for long time music enjoying, gaming, TV watching or travel for kids, teens and adults. NEVER POWER OFF - Both Wireless and Wired Mode are available. Up to 6-hr playtime with a single charge in wireless mode. Or just use it as a wired headphone with the provided 3.5mm audio cable, which never power off, allows you bring your music everywhere. Moreover, this wireless headphones provide a quick and stable connection with your Bluetooth enabled devices within 33 feet, with a high-quality microphone for hands-free calls also support SD Card Player and FM Stereo Radio. RELIABLE TRAVEL PARTNER - Foldable headband is not only designed for saving your desk space but great for carrying in bag or suitcase. When you are going out for a trip, take a plane or take a car, this bluetooth headset would be a good companion. Built tough to be handled with, the folding part have been tested for over 20000 times to ensure they are portable while staying durable. To get both audio and wearing comfort, please take off the headphones every 1-2 hrs to get your ears relax.