Bluetooth connection: 10 meter wireless pairing, automatic connection Time 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 play music 6-8h. Parameters: Power supply: DC 5V/1A Receiving distance: 10m (without obstruction) Frequency range: 100Hz 10KH Reverb mode: built-in echo effect Bluetooth version: 5.0 Material: plastic colour: A-Black / B-creamy white<br><br>Package Contents: 1 x Bluetooth Speaker 1 x USB Cable Only 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.