<https://www.gadgetworld.co.ke/shop/entergo-powerbeat-solo/#product>
<http://schema.org/description>
"Bluetooth Version: V4.2\r\n \tSpeaker Frequency: 0-20KHz\r\n \tListen/talk time: 5 hours*\r\n \tStandby time: 100 hours\r\n \tCharge time: 2 hours\r\n \tInput Power: 5V/1A\r\n \tBattery capacity: 100 mAh\r\n \tSize: 59*26*24mm\r\n \tOperating range: 10 meters"
<https://www.gadgetworld.co.ke/shop/entergo-powerbeat-solo/>