Impact PLO-D1 Platinum Series, professional grade listen only surveillance kit with adjustable D-ring. The 1-Wire listen-only plugs directly into the radio for discreet receive-only communication and is ideal for those who supervise or oversee radio communications.
eBay
SYNCO Xtalk XPro 9 5 3 2 Wireless Headset Intercom System 2.4G Communication Wireless Microphone for Movie/Live/Stage/Studio
Aliexpress UK
[Compability] Excellent with Baofeng Kenwood Retevis BTECH PXTON SAMCOM Anytone TYT WOUXUN 2 Pin radios; including Baofeng UV-5R BF-F8HP BF-F8 BF-F9 UV-5G UV-5R+ UV-5R UV-5RB UV-5RE UV-5RTP UV-6R UV-82 UV-82L UV-82HP UV-82C UV-S9 and more; Kenwood NX-1300 NX-1200 TK-3402U NX-P1300NUK NX-P1300 TK2170 TH-K20A NX-3220 NX-220 NX-3320 TK-3160 and more; other radios GM-30, GA-510, FPCN30A AT-D878UVII, and etc.
eBay
ABBREE X105M X107M VHF Marine Radio Antenna High Gain Waterproof Fiberglass RG-58U Sturdy Base Mount Ship-to-Ship Communication
Aliexpress UK
HP602 Radio Accessories Earpiece Mic Ptt Surveillance Headset for Hytera HYT PD602 PD602i PD662 PD662i PD682i HP682 Digital Portable Walkie Talkies(Black,Wired). Compatible Devices HYT Hytera PD6 series radios.
eBay
ASMAX S1 Bluetooth Motorcycle Intercom 8 Riders Communication Headset with FM & ENC Mic, Voice Control, IPX7 Waterproof
Aliexpress UK
Lapel PTT with high quality microphone, easy and convenient to wear and clear sound performance without distortion. Tangle free. NOT work for Kenwood, Hytera, Puxing, Wouxun, Baofeng, Midland Radio.
eBay
10 inches Cable Cutter,Heavy Duty Cable Cutting, High Leverage Cutter for Aluminum, Copper, Wire, Communications Cable
Aliexpress UK
Compatible with: HYT TC320 Compact Radio - Single Pin Connector with Retaining Screw. Comfort fit earpiece can be easily placed for service or hygiene. Clear acoustic tube style surveillance earphone made of heavy grade surgical tubing.
eBay
Hollyland Solidcom SE Full Duplex Wireless Intercom Headset System ENC Noise Cancellation 350m 2-5 Users Team Communication
Aliexpress UK
Features: Connect and coordinate effortlessly with the 2 pin walkie talkie security earpiece. Its covert design ensures discreet communication while maintaining excellent functionality. Suitable for various two way radios, this earpiece is compatible for multiple models.
eBay
2PCS BaoFeng BF-1909 Walkie Talkie UHF 400-470mhz Crystal Clear Sound Long Range Communication USB-C Transmitter Portable Radio
Aliexpress UK
New 2-Wire Headset with Clear Coil Tube, Earbud, and PTT Mic for Push-To-Talk (PTT) mic with single surveillance style acoustic tube. polyurethane jacketed, Kevlar reinforced wires. Heavy duty, rugged poly-carbonate housed PTT mic.
eBay
Quansheng UV K5 8 Walkie Talkie K6 Pro 512KB Memory Long Range Portable FM Ham Wireless Set Walkier Camping Communication Radio
Aliexpress UK
1 Piece Hunting Headset. Detachable microphone, can be installed left and right. Note: This version has only communication function and No Noise Reduction function. We'd like to settle any problem in a friendly manner.
eBay
Quansheng UV K1 Mini Walkie Talkie Wireless Set Hunting Camping Long Range Ham Communication Radio K6 Walkier Talkie Transceiver
Aliexpress UK