Outdoor Desktop Universal Bluetooth Card-reader USB Drive Radio Microphone Singing Wireless Speaker

Product information:
Power Source: Built-in Lithium Battery
Color: Black
Frequency Response Range: 100 Hz - 20 kHz
Manufacturing Method: OEM Custom Manufacturing
Interface Type: USB
Package Contents: None
Target Audience: General Public
Channels: 2 Channels
Dimensions: 108 * 88 * 158 mm
Battery Capacity: 1000 mAh
Housing Material: PP Plastic
Operating Method: None
Function: Card Slot