Product parameters: Power: 3W Frequency response range: 200-0000HZ Sensitivity: 90+/-3 Impedance: 4Ω battery Battery: 26650 lithium battery Charging time: 5 hours Input: DC5V 800mAh. Output: DC5V-1000mAh. Bare metal weight: 130g Shell material: ABS + rubber paint Product size: 137x29x29mm Standard accessories: host 1 + audio cable 1 + 2 in one charging cable 1 + color box packaging + manual Instructions for use: 1USB one for two lines: one end is to charge the phone, the other end is to charge the charging treasure speaker itself. (Note: the charging hole and the audio input hole are the same hole) 2 audio cable: one end is connected to the speaker audio input hole, and the other end is inserted into the device earphone hole. (Note: Pay attention to the compatibility of the headphone jack)