The Clip and Clip Pro accept power input with a minimum of 6 Volts and a maximum of 18 Volts (indicated on the chassis near the DC barrel jack connector).
It's not possible to use a lower value power input such as 5 Volts from a USB port or USB power / battery pack since that falls below the minimum input.
The use of greater than 18 Volts will damage the product and is not covered under warranty.
Clip Encoder / Decoder
Clip Pro Encoder / Decoder