Product information:
Function: insert card, voice prompt, call function
Type: Portable speaker
Connection method: Bluetooth connection
Interface type: card reader
Signal to noise ratio: ≥75dB
Power supply mode: built-in lithium battery
Channel: 2
Play time: 6 hours
Operation mode: button
Applicable people: general
Display: None
Play format: MP3, WMA
Shell material: plastic
Whether to support APP: No
Support format: U disk
Speaker adjustment method: button
Appearance size: 150*58*50
Product weight: 0.15 (KG)
After-sales service: nationwide warranty
Invoice: Provide an invoice
Color: white, blue, black, red
Specification: 300 mAh battery

Packing list: 

speaker x1