More specific information including pictures, manual, protocol, commands list .etc are available from/ Informações mais específicas, incluindo fotos, manual, protocolo, lista de comandos, etc, estão disponíveis em: https://t.me/BRAZIL4GGPS

Here's the price information/ Aqui estão as informações de preço:

TS-G17Hs with the support of ACC and Relay
Sample, US$18 each
if 100pcs or more, US$16.98 each
if 500pcs or more, US$15.98 each
if 1000pcs or more, US$14.98 each

TS-V6M with the support of ACC, Relay, SOS, Microphone
Sample, US$18 each
if 100pcs or more, US$17.98 each
if 500pcs or more, US$16.98 each
if 1000pcs or more, US$15.98 each

Relay US$1, SOS US$1, Microphone US$1 for option.