<https://www.dealshive.com/sales/waterproof-bluetooth-hifi-stereo-speaker-mp3-player-great-for-bikes/#product>
<http://schema.org/description>
"Waterproof Bluetooth Speaker\r\nHiFi Stereo Wireless Speaker, great for Bikes. Can be used as an MP3 Music as well.\r\n\r\n\r\n&amp;nbsp;\r\n\r\n\r\n\r\n\r\n \t\r\nBuilt-in 400 mA lithium polymer battery\r\n\r\n \t\r\nCharging time: about 2-2.5H\r\n\r\n \t\r\nBluetooth transmission distance: &amp;lt;10 m.\r\n\r\n \t\r\nmore than 4 hours of continuous playback."
<https://www.dealshive.com/sales/waterproof-bluetooth-hifi-stereo-speaker-mp3-player-great-for-bikes/>