Specification: General Model CH-M29 Material Plastics Bluetooth Version V3.0 Speaker 4 ohm, 3W, 66mm Frequency Range 87.5~108 MHz (FM) Frequency Response 150-20KHz Transmission Distance Up to 10m SNR >=80dB Interfaces 1 x TF card slot 1 x DC charging port 1 x USB 2.0 port Additional Functions FM Radio Player Format MP3 Power 5W Charging Voltage DC 5V Battery Battery Capacity 1200mAh Dimensions & Weight Item Size 15×12.6×10.4cm Item Weight 327g Package Include Package Contents 1 x USB cable 1 x Speaker Package Weight One Package Weight 0.47kgs / 1.03lb Qty per Carton 20 Carton Weight 9.40kgs / 20.72lb Carton Size 56cm * 29cm * 34cm / 22.05inch * 11.42inch * 13.39inch