Brand N/A Quantity 1 Piece Color Black Material Plastic + aluminum alloy Compatible Models Universal FM Frequency 87.5~107.9Hz Frequency Response 20Hz~20KHz Operating Range 5~8m Microphone Yes Power Supply Built-in battery Input USB Battery Type 120mAh Cable Length 80cm Display Screen 0.7" Other Features Hi-Fi stereo sound; With hands-free function; Lightweight and concise; Storage temperature: -20~50'C; Working temperature: -10~40'C; Battery working time: 4h; Can be charged through car USB or computer Packing List 1 x FM transmitter 1 x USB cable (80cm) 1 x English user manual