Electronic DIY Bluetooth Speaker Kit White DIY Soldering Project Electronics Kit Teaching Practice Bluetooth Stereo Speaker Kit Color:1DIY Kit Runyangshi 1pcs Natural crystal Chalcopyrite

Runyangshi 1pcs Natural crystal Chalcopyrite raw s

plastic and rubber

Blood Oxygen Saturation

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Electronic DIY Bluetooth Speaker Kit White DIY Soldering Project Electronics Kit Teaching Practice Bluetooth Stereo Speaker Kit Color:1DIY Kit Runyangshi 1pcs Natural crystal ChalcopyriteProduct description: 1. The volume of power on and off can be controlled by remote control. 2. Full frequency speaker with PU edge, silver black diaphragm 40 magnets 4 Euro3W, high cost performance and clear sound quality. 3. Interface 3. 7 5V DC power supply for automatic music playback, stereo power amplifier, Bluetooth support, power off memory support, and U disk for music playback. 4. Acrylic shell, made of 6 pieces of 3mm high transparency