Note: Supports USB2.0 high speed transmission, fully compatible with USB1.1. Specification: Function buttons: on/off, menu, previous song, next song, play/pause, volume control_x000D_LED display panel._x000D_Built-in high capacity rechargeable battery, support long play._x000D_Compact and portable, convenient to carry._x000D__x000D_Interface Type:USB, AUX_x000D_Speaker Type: Mini_x000D_Playback Function:Radio,MP3_x000D_Material:Aluminum_x000D_Support Memory Card:Yes_x000D_Display Screen:Yes_x000D_Audio Classification:Mini_x000D_Cabinet Material:Metal_x000D_Support APP:No_x000D_Support Apt-x:Yes_x000D_Special Feature:Wireless,Portable,Mini_x000D_Remote Control:No_x000D_Speaker Type:Surround_x000D_Type:Passive_x000D_Material: Aluminum alloy_x000D_Power source: Li-ion battery / DC5V_x000D_SNR: more than 80dB_x000D_Music format: MP3_x000D_Size: 50*50*50mm/1.96*1.96*1.96inch(Approx.)_x000D__x000D_Package included:_x000D_1 x Mini Portable USB Speaker_x000D_1 x USB Charger Cable Features: 1_x000D_Madeofhighqualityfluorescencesurfacealuminumalloy,elegantandstylishinappearance. 2_x000D_Goodsoundqualityletsyouindulgeinyourfavoritemusic. 3_x000D_SupportsSecurityDigitalMemoryCard,TFcard,USBdisk,FM,etc. PackageList: