Product Features: Compatible with 3.5mm plugs, which is suitable for most electronic devices such as iPod, MP3, MP4, radio , CD player, etc. Thickness: 1.2 cm Diameter: 6 cm Cable length: 113cm Weight: 34g color white < br />Package Contents: 1x 3.5mm Pillow Speaker [Plug and Play]---Under the pillow speaker, just put it next to the pillow and connect it to the device, you can enjoy beautiful music without to disturb others. [Under Pillow Speaker]---It emits beautiful music and helps you sleep well. It is very suitable for listening to relaxing music, self-hypnosis or soothing baby, which can help you sleep well and help you sleep. [Strong Compatibility] --- Suitable for most devices, almost compatible with all audio devices with 3.5mm jack, such as MP3, MP4, CD players, mobile phones, iPods, etc. [HD sound quality]---Provide impressive true HD and unique smooth sound to enhance your music experience. [Portable and Mini] --- Fine workmanship, beautiful appearance. Lightweight and easy to carry.