Check the listing for details. 57mm Full Frequency Speakers 4Ohm 12W Highly Power for Auditory Project. Condition: New, Made in China. Listed at 17.96 USD. Features: 57mm Full Frequency Inner Speakers, boasting a robust 12W power for immersived Auditory journey. National standard magnet:Full magnet force, making the sound more powerful Drum paper: at low frequencies with lower distortions rate Higher power utilization sound quality Crafted for audiophiles, the Speakers features a highly quality drum paper that minimizes distortions at low frequencies Specifications: Power: 12w Frequency : 100Hz~20KHz Impedance: 4ohms Circuit Form：Internal Type Size：about 57mm/2.24in Quantity: 2Pcs/Set Package Includes: 1Set 57mm Inner Speakers note: There might be distortions due to different computer resolution. There might be size errors due to different computer resolution.