This is the portable system that processes credit card payments using one's smartphone. Ideal for professionals, contractors, and consultants, the system allows you to accept credit or debit card payments at a work site, in a client's home or office, or anywhere within cellular coverage. The mobile credit card reader simply plugs into the headphone jack of your smartphone. Using the manufacturer's free app, the customer's credit card is swiped through the reader and the payment amount entered on your smartphone; funds are deposited daily into your account. All information is encrypted and the unit doesn't store credit card numbers, making transactions 100% secure. Compatible with iPhone, iPod Touch, Android and Blackberry smartphones. The system accepts all major credit cards (standard credit card transaction fees apply). Includes protective case and lanyard. 2 1/2" L x 1 3/4" W x 1 1/4" D. (1 oz.)