Product information : Input voltage: 220V Bluetooth protocol: 4.1 Color: pink, red, blue, black, camouflage. Bluetooth version: 5.0 Built-in battery capacity: 1000mA-1200mA Endurance: 3-6 hours Signal-to-noise ratio: ≥70db Frequency response range: 100HZ-20KHZ Size Information: Packing: 90*75*236MM Packing list: Audio *1 + Data cable *1+ instruction manual *1