I recently purchased this on Mercari as "new, unused." After it arrived, I charged it and tried using it, but it was different from what I expected, so I am relisting it. Usage time is about 2 hours, and it's almost like new. All accessories, including the manual, are included. -------------------------------------------------------- - Brand: Semiro - Model Name: NY17 - Battery Capacity: 230mAh - Charging Voltage: 5V - Charging Current: 0.5-1A - Waterproof Level: IP67 - Data Transfer: Bluetooth 5.0 Thank you for looking.