Features 1.LONG BATTERY LASTING: 1000mAh high capacity battery, long lasting, 6 7 hours long lasting ability, not just stop at the power of sound, but it brings the continuation of music. 2.BUILT IN MICROPHONE: Bluetooth speaker built in microphone, you can answer calls directly through it, call without waiting, HD call, easy to grasp the whole situation. 3.BLUETOOTH 5.0: Bluetooth 5.0 is easy to connect, turn on your stereo and devices, search for Bluetooth, select and connect to "ZY 010", then start enjoying your music time. 4.CLEAR BASS: Mono speaker improves the bass performance, making the bass clear and fluent, while maintaining a compact form factor, upgraded sound quality and more powerful bass. 5.DUAL SPEAKER CONNECTION: Dual wireless serial connection system, open the two speakers, do not connect to the phone first, choose any one to double click on the power button to pairing, so that the two speakers are connected, connect successfully there will be an indicator light flashing, and there is a beep, and then the phone selects a "ZY 010" connection to play the two speakers at the same time! specificationItem Type: Portable Bluetooth Speaker Material: ABS Battery Type: Built in 1000mAh Lithium Ion Battery (Included) Bluetooth Version: 5.0 Bluetooth Name: ZY 010 Effective Distance: 10M Power Input: USB C PackageList 1 x Speaker 1 x Power Cord Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.