Operation frequency: 900/1800/1900 GPRS and EDGE, and nationalwide 3G 850/2100.
Coverage: Nationwide except Northern Region, part of Minas Gerais state and Londrina and Tamarana in Paraná state.

Offer name: Claro Toda Hora
Simcard cost: R$15,00 (5,50 euro)
Voice Call: R$1,36/min (0,50 euro)
Data cost: R$6,00/mb (2,20 euro)

Data bundle: none
APN: claro.com.br
User: claro
Require Password: no
Password:
Authentication: no

The operator have a prepaid dataplan with 2 packages:

100mb at 20R$ (11,62US$), with a lenght of 24 hours;
500mb at 50R$ (29,09US$), with a lenght of 1 week.

Obs: to activate a prepaid simcard user must make a call to any number except free numbers. An automatic system will pickup the call and ask for a valid CPF (Cadastro Pessoa Física), a brazilian document. So it´s better to ask for the attendant to make this process for you.