Bluetooth MP3 Decoding Board Module with TF Card Slot / USB / FM / Remote Decoding Board Module Motherboard Speaker AccessoriesFeature Built-in MP3 player With FM Radio Function Support Card, U disk, mobile phone, computer, MP3, car Stable quality, energy saving, low energy consumption, low calorific value, long service lifeSpecification Maximum power: 30W Working Voltage: 9-20V Sound Conversion rate: 90% Voltage: 220 V Loudspeaker unit: 133mm Impedance: 4 () Sensitivity: 200Frequency response range: 20-20000 Panel size: 13.88cm/5.433.15 inchesPurchase Option A: MP3 Decoding Board Module with Bluetooth B: MP3 Decoding Board Module without Bluetooth
