Specifications:USB wired speaker for laptop, computer or phone use.Subwoofer music player, let you enjoying different sound effect.Mini size, will not occupy large area and it& 39;s easy to carry.Item Name: SpeakerMaterial: PlasticConnector: Aux CableMemory: Support TF Card (Not Included)Output Power: 3WFrequency: 60Hz - 18KHzSignal-to-Noise Ratio: 80dBDistortion: Less than or Equal to 0.5%Power Supply: USB DC 5V/1AUSB Type: USB 2.1Features: Subwoofer, Mini, USB Wired, Music PlayerSize DetailsMain Speaker: 95mm x 115mm x 128mm/3.74" x 2.48" x 2.95" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Main Speaker2 x Guard Speakers1 x User manual