Zealot S33 Wireless Bluetooth Speaker Portable Mini 3D Stereo Subwoofer Snail Shape with Microphone Support TF/sd Card RedRomantic snail shape speaker, 3D stereo, touch control, creative speaker.Bluetooth V4.2+EDR, smooth performance, long transmission range and stable signal.Long standby time, music playing time up to 5 hours.With TF card slot, supports TF card, you can expand your music playlist..