All devices in the 2G System use the same format of power supply:

• 5 Volts
• 2 amps or greater (to get 10 Watts, where Watts = Volts x Amps)
• 5.5mm outside, 2.1mm inside barrel connector
• positive tip

DO NOT use a power supply greater than 5 Volts. Doing so will cause irreparable damage to the unit.

Power supplies with these specifications can be found at any electronics retailer that sells power supplies.

Example Power Supply: https://www.digikey.com/product-detail/en/phihong-usa/AA10A-050A-R/993-AA10A-050A-R-ND/11203820