Send the following on WhatsApp
Continue to ChatMTM VR Zamak 4G Intercom Audio Kits with Keypad and Digital Display https://www.cameproducts.co.uk/shop/intercomsystems/intercom-kits/gsm-4g-lte/mtm-vr-zamak-4g-intercom-audio-kits-with-keypad-and-digital-display/