DIY 2. 1 Bluetooth Speaker With RGB Music Light, Rainbow Candy Marble From PVC Tube

Rainbow Candy Marble From Sanitising Wipes Effect 2. 1CH Bluetooth Speaker Using PVC Pipe AW 10 8mm Acrylic White Transparent With RGB Music Light Battery 3. 7v 18650: 18650 Battery Holder : 5S 15A BMS Lithium Battery 18650 Charger : 21V 2A lithium 18650 Battery Charger : 5A XL4015 DCDC Step Down Adjustable :