Long Double Speakers Home Desktop Home Theater Small Stereo $ 25.18 Product information: Function: insert card, radio, dustproof, call function Connection method: Bluetooth connection Interface type: USB Frequency response range: 85HZ-20KHZ Output power: 6W Signal to noise ratio: 80dB Power supply mode: built-in lithium battery Play time: 5 hours Expansion storage: 16GB Bluetooth protocol: 5.0 Number of speakers: 2 Effective distance: 10 meters Operation mode: button Display: None Play format: MP3, WMA, WAV Shell material: metal Speaker adjustment method: button Is there a radio function: Yes Box material: metal Appearance size: 4206169MM Product weight: 1.3 (KG) Color: white, black, red Specifications: 6W, 10W Power supply mode: USB Battery capacity: 1200mAh Package: Bluetooth speaker x1