Power: AC220V(50HZ) allow 110V-250V

 Output Power: 4*25W

 Main screen size: 2.8 inch HD screen

 Key Touch, easy operation

 Expand TF card memory: 32GB

 USB: Support USB function, 32G can be read

 Output impedance: 4-8 Ω

 Frequency response: 87.5Hz-108MHz

 Audio S/N ratio: ≥98db

 Bluetooth distance: 10m

 Infrared remote control distance: 10m

 Radio: Built-in all-digital auto-tuning radio, 30 radio stations

 Product size: 86*86*10mm