Brand SH Model SH-820 Type Portable Colors Black Quantity 1 Material ABS + electronic components Internal Memory No Memory Card Type TF card Max Extended Capacity 32GB Media Format MP3 Total Power 20W Impedance 4ohm Channels 2 Remote Type N/A Interface 1 x 3.5mm microphone jack 1 x Power port 1 x USB 2.0 port 1 x 3.5mm earphone jack 1 x TF card slot Radio FM Radio FM Frequency 78~108MHz Power Supply Built-in Rechargeable Battery Built-in Battery 2200mAh lithium battery Plug Type 2-Flat-Pin Plug Other Features Lithium battery charging voltage: 3.7V; Display screen: 1.5 inch Packing List 1 x Speaker 1 x Remote controller (Powered by 1 x CR2025 included) 1 x Microphone (99cm) 1 x Chinese user manual 1 x Shoulder band (66cm) 1 x 2-flat-pin plug power charger (100~240V / 112cm)