Bluetooth connection: 10 meter wireless pairing, automatic connectionTime display/ Dual alarm clock: Support time display, dual alarm clock, no longer worry about oversleeping and being late for work.Multiple play method: Bluetooth , AUX play, TF Card play, FM radio.Supports wired connection through AUX audio cable, Supports Bluetooth wireless connection, FM, TF card output.Strong endurance: 1500mah rechargeable battery, could 6-8h.Parameters: Power supply: DC 5V/1AReceiving distance: 10m (without obstruction)Frequency range: 100Hz 10KHReverb mode: built-in effectBluetooth version: 5.0Material: plasticcolour: A-BlackPackage Contents: 1 x Bluetooth Speaker1 x USB CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.