quality sound: The CD Cassette Player Combo uses NdFeB speakers and bass reflex tubes to deliver immersive, clear audio for both indoor and outdoor listening. Multifunctionality: More than just a CD player. It supports Bluetooth wireless playback from your smartphone or other devices, as well as USB and TF card playback, and FM radio for a variety of listening options. Enhanced radio experience: The CD player features a Telescopic Antenna with an updated radio chip that automatically scans and stores radio channels. It allows easy presetting of favorite stations, and the rotatable antenna improves FM reception with full extension when needed. Portable and rechargeable: Designed for indoor and outdoor use with a builtin 4000mAh battery, so it can operate without being constantly plugged in. This enables music enjoyment in the kitchen, bedroom, or outdoors, without frequent battery changes. Practical use scenarios: At home: Enjoy CDs or Bluetoothstreamed music in the kitchen or living room, with USB/TF or FM radio as alternatives. Outdoors: Take it to the park, patio, or campsite for hours of music thanks to the rechargeable battery. On the go: Use in various rooms or during gatherings, switching between CD playback, Bluetooth audio, USB/TF files, and FM radio as needed.