Behind the head headset with carbon fiber finish. Features a stainless steel headband, 3.5mm scanner / music input jack, waterproof push to talk, 5-pin universal radio port.
eBay
Tuya Smart Home Control Panel 8-inch Touch Screen Bluetooth Zigbee Gateway Built-in Building Intercom Compatible Home Auto
Aliexpress UK
Full Duplex Wireless Bluetooth Handsfree intercom commnunicate. 1x Headset with 1 Mic. Bluetooth Core: Bluetooth 3.0. Works good with referee headset for football match(3-4pcs to make a referee group).
eBay
Baofeng UV-5R Mini Walkie Talkie Orange 5R mini Radio Bluetooth Programming 1600mah UHF VHF AM FM Portable Intercom For Camping
Aliexpress UK
The new WM1 Wireless Interface Module connects your Bluetooth device and intercom to stream music wirelessly. The WM1 simply plugs into the back of your intercom via 6 pin AUX and pairs with Bluetooth device within seconds.
eBay
XINOWY V6C 1200M Referee Intercom Headsets 2-6 Group Bluetooth Communication between Soccer Handball Football Referees
Aliexpress UK
This complete offroad flex boom helmet kit features Rugged Radios Dura-Link Sealed Connector, Alpha Audio speakers and dynamic noise canceling mic for best audio performance, as well as a 3.5mm input jack.
eBay
2PCS walkie-talkie, children's toys, wireless walkie-talkie, parent-child interaction, friend interaction, intercom, communicati
Aliexpress UK
Unused - 2 Sets, No PMR Radios supplied. Uses a 3.5mm Jack to connect to radio. You are buying secondhand.
eBay
Vehicle-mounted Radio Public Network 4G Full Netcom Bluetooth Outdoor Small GPS Navigation Global WIFI Intercom Waterproof
Aliexpress UK
With the Caberg Pro Speak Evo Motorcycle Bluetooth Kit you can enjoy your favourite music in stereo, effortlessly manage your music on the go, and conveniently make and receive phone calls while maintaining crystal-clear digital quality and benefiting from the advanced DSP system for noise suppression.
eBay
Kids Video Walkie Talkie with 2" HD Screen One-Click HD Call Intercom For Children Gadgets Technology Gift
Aliexpress UK
This complete offroad flex boom helmet kit features Rugged Radios Dura-Link Sealed Connector, Alpha Audio speakers and dynamic noise canceling mic for best audio performance.
eBay
2PCS JK200 Kids Video Intercom Walkie-talkie Cute Screen Easy Use Rechargeable Christmas Birthday Cute Ham Radio for Gifts
Aliexpress UK
These headsets connect directly to each other and allow you to communicate side by side in a high noise environment. Great for use at NASCAR races and other racing events. Each headset features a 3.5mm jack and you can plug in an external audio source into one of the headsets and both headsets will be able to listen in - perfect for race scanners so you can listed to your favorite driver's race team!.
eBay
2pcs Rechargeable Video Walkie Talkies Kids Handheld Intercom Built-in Camera Video Indoor outdoor Family Games Camping Hiking
Aliexpress UK