Round Shape Portable speaker, Multimedia speaker, portable speaker, Mobilephone MP3 speaker,computer speaker,laptop speaker Specifications:MP3 speaker: 1.card reading function,can read USB/SD ... diameter 52mm),antimagnetic,4 ohm6.Input voltage:DC 5V7.Speaker:3W x210.Use large capacity Lithium battery(1000mA),can ... =25344pcs40"ft = 1100 Cartons =52800pcs40"HQ= 1250 Cartons =60000pcs Mini Carder Speaker