Vibrating speaker

To make it sound, place it on a hard surface (such as a table, cabinet, or window glass), and this surface will become the "speaker membrane." • 🔌 DC 5V input (for charging via USB).
• 🎚 Switch with three modes: ON / Off / BT (so it works with both a cable and Bluetooth). • 🎵 Line-in port (3.5 mm aux input for connecting a smartphone or other device).
• 🔊 Control buttons on top (for volume control, song switching, pause/play). • 🎤 Microphone opening – can also be used as a hands-free system for making calls.