1.size:49*41*140mm 2. weight: 215g 3.colour: rubber black 4.USB card support, ... ,MP3,MP4 Specification: 1.size:49*41*140mm ,weight:215g,2.USB card support,can be connecting with computer,MP3,MP4 ... (dB)Frequency18--180(Hz)Degree of diatortion0.5(%)Appearance materialPlastic Speaker impdance4(Ω) Size49*41*140mmWeight215(g) Colour rubber black Impedance 4 ...