Speaker power: 5WSpeaker size: 2 inchesBattery type: polymer lithium batteryCapacity: 1200 mAhBluetooth: Custom Bluetooth 4. ChipCharging time: 2-3 hoursProduct size (MM): 95*60*70Charging requirements: DC 5V/1A-2AMemory card slot: TF cardCharging interface: mini USBIndicator material: smart LED light sourceIndicator description: Blue light flashes (to be connected), blue light is on (connected), red light (charged)