Our Locations
In the US:
Sound of Angels
12759 NE Whitaker Way, # P888
Portland, OR 97230
USA
Tel: +1 503 746 8282
In Europe:
Sound of Angels, Lda
Av. Jose Malhoa, 2, Office 1.1
1070-325 Lisbon
PORTUGAL
Tel: +351 96 2422996
Reg. no. PT514139625
Read about our:
Shipping Conditions
Conditions of Use
Privacy Policy
Cookie Policy
You need to uninstall the current Zello version and use, instead, v3.53 in order to disable the PTT button that brings Zello to the foreground.
Official RFinder shop 
Official Inrico shop 
Worldwide fast deliveries
PTT4U is a state-of-the-art network radio service for professionals. Relying on the GSM signal, our radios will be able to talk to each other without any range restriction. Each radio works with a SIM card (not included) and uses GSM/3G/4G and some modes even work with WiFi signal. This means you don’t need to spend a fortune on expensive radio infra-structures, repeaters, antennas or site rentals. All the network infra-structure is provided by the GSM carrier. Private and group calls are available. Your team members can be in different countries and still within reach. Each user can check each other’s location (based on their profile), send messages and SOS alerts. All you need to do, is to purchase our network radios, depending on your needs, insert your preferred carrier SIM card on the radios (a monthly data plan of 500MB will be enough) and subscribe the yearly PTT4U service. You will need one yearly $49 subscription for each radio. And that’s it! No more headaches. 
