Using wireless Bluetooth technology, software developed by Toroblue.com enables a company’s business card to be sent to every customer’s mobile or PDA as they enter the premises. Furthermore, each visitor has the option of accepting or declining the card, so the system avoids bombarding uninterested parties.

Like a traditional business card, the e-card contains all the usual contact information, but also includes a company logo. Accepted information is then stored in the phone’s address book for easy access later.

There’s no charge for sending or receiving and the technology ensures an e-card will never be sent to the same phone twice. Costing £349, the software is less expensive than many other sophisticated marketing tools and the makers claim the technology boosts customer retention because it leaves a permanent brand reminder in each visitor’s handset.