The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Stereo Surround Sound Quality The outdoor rock speaker has built-in high-efficiency stereo speakers, and has two independent audio signal channels, which can be output at the same time; Battery Life The stone speaker can work for 6-8 hours when it is fully charged; if you place it in the sun, the use time will be extended; because the solar energy will automatically charge; Is it possible to pair 2 speakers? Outdoor Speakers are equipped with TWS Pair Function; Solar Rock Speakers support 2-piece pairing; Are the outdoor speakers lighted? Yes, Solar Bluetooth Speaker is an outdoor speaker with light; with RGB color changing mode; bluetooth rock speakers support solar automatic charging? Yes, Outdoor rock speakers has 2 charging options. It can be charged by Solar Powered and USB Rechargeable Battery. Outdoor speakers can be charged while in sunlight (charging time is 1 day). USB Rechargeable only takes 4-5 hours. How to implement 2 Rock Speakers for pairing setup? Make sure the led BT speaker is powered On before connecting your device. Proceed as follows: How to pair two speakers : to pair 2 speakers. 1) turn on any 2 of speaker by Long press on/off button；2) double pressing ON/OFF button from any one of the speaker after both were turned on,there will be one beep notice.then it is able to hands off. the double pressed one will become master and Bluetooth indicator will start flashing and trying to pair with the vice one. since paired successfully,the indicator of master speaker keep flashing quickly and vice’s keep flashing slowly. Also will be beep notice. 3) Now you can connect your Bluetooth device(Mobile) to the speakers via Bluetooth.Once connected and unplay Music or Pause the music ,the Bluetooth indicator light for Master One glows in fixed blue , vice’s keep flashing slowly. 4) Since Bluetooth connected, and during playing Music, Bluetooth indicator of both items are Off . 5) During Pairing mode, If you turn off the Master by long press on/off button,the music of Vice one will goes off as well,but the light will keep on.6) During pairing mode , If you turn off the Vice by long press on/off button, the Master still keep working, it will out off pairing mode in 10 seconds later,Master working individually. 7) Deactivate the pairing function during pairing mode,double pressing any one of speakers till beep voice out.