Type: bluetooth speakersConnection mode: bluetooth connectionInterface type: card readerBattery capacity: 500 mah imamFrequency response range: 100 hz - 20 KHZPower supply: built-in lithium batteryTrack: 2The broadcast time: 6 hoursBluetooth protocol: 3.0Speaker: 2Range: 10 metersFunction: dustproof、 phone、 card、 voice prompt、 the radioMode of operation: the keysApplicable people: generalDisplay: noShell material: plasticWhether to support the APP: it isSupported formats: TF cardSpeakers adjust way: touchIf there is a radio: yesBody material: plasticAppearance of size: 10.2 * 5.2 * 5.2Product weight: 0.15 (KG)Specification: black、 red、 blueJUSS