This USB rechargeable speaker is made of , which can withstand use. Features the ABS and iron material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Material: ABS, iron -Size: 5.20X5.20X3.80cm/2.04X2.04X1.49in Frequency response: 60Hz-15KHz SNR: >=75dB Output power: 0.5W Version: 2.1 Play time: 2h Port: 3.5mm - Special design and it is in workmanship. It is the best replacement for your old, broken one. - It is in stable characteristics, high performance and it is in great reliability, simple, easy to use. - Small in size, this plug in speaker will not take up much space, easy to carry and use anytime anywhere. - Easy to use, just connect to the earphone jack into your phone, desktop computer, laptop, and etc. - Practical and portable, mini speaker for home, office, school, etc. Package list: 1 x speaker