Manufacturer Amazon Card Tf Fm Gift Customized C6 Rugby Usb Mini Bluetooth Speaker

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