Audio can pass through the speaker grill even when the microphone port is blocked by water.
eBay
ABBREE PoC Network Walkie Talkie Headset Type-C High Definition Sound Quality Built-in PTT MIC For GP-268 GP-298 ZELLO Radio
Aliexpress UK
The Motorola PMMN4073AL Remote Speaker Microphone with clip is a tested OEM product designed specifically for Motorola radios. This microphone features a convenient clip mount for easy attachment and has a connectivity of 8 pins. It comes as a single unit and is compatible with Motorola radios. The durable construction and reliable performance make it a valuable accessory for those in need of a high-quality microphone for their radio communication needs.
eBay
RISENKE-Earpiece for Hytera Radio Walkie Talkie, Ptt Mic Headset, TC508, BD502i, PD402i, TC610, PD482i, BD552i, PD502, PD562
Aliexpress UK
Dynamic mic. Karaoke speaker with microphone. Microphone Pickup. Speaker Output power. Connect type.
eBay
New 2.5mm FBI Acoustic Tube Earpiece Headset Mic PTT for Motorola Talkabout Radio TLKR T80 T60 T3 T5 T7 MR350R MD200
Aliexpress UK
Good condition, except the rubber cover for Headphone port is broken off. Often, you only see the first one selected and depending on where you live, it may not be the cheapest one.
eBay
Baofeng Walkie Talkie Headset Mic K-Plug Wired Two Way Ham Radio Earphone EarHook Headphone For BF888S UV5R Walkie Talkie
Aliexpress UK
The Connector to Radio:10-Pin Aviation Connector to the for Hytera DMR radio MD655 MD650 MD652i. 1× Stretchable Microphone speaker cable. Material of Inner Conductor: Pure-copper. All products are in UK Warehouses.
eBay
2 Pin Earpiece Headset Covert Acoustic Tube Earpiece Headset Mic for Motorola GP300/308/68/88/CP88/100/200/CT150 Two Way Radios
Aliexpress UK
The Motorola PMMN4128A RM780 Remote Speaker Microphone R7 ION MOTOTRBO is a rugged and durable microphone designed specifically for Motorola devices. With IP68 certification, this microphone is built to withstand tough conditions and ensure clear communication. Manufactured in Malaysia, this unit is compatible with the R7 model and provides high-quality audio transmission for enhanced productivity. Perfect for outdoor or industrial settings, this remote speaker microphone offers convenience and reliability for users in need of a dependable communication tool.
eBay
ALLOYSEED 2 Pin Covert Acoustic Tube In Ear Earpiece PTT Mic Headset For Kenwood Baofeng UV-5R BF-888S Two Way Radio Accessories
Aliexpress UK
PMMN4051B remote speaker microphone - XTS 5000, XTS 2500, XTS 1500, MT1500, MTX8000, PR1500. Includes Windporting technology that dramatically lessens noise caused by high winds and severe weather. IP55 water resistant.
eBay
Applicable to walkie-talkie MTH600 MTH650 PTT Air Tube Earpiece Mic Headset for Motorola Radio MTH850 MTP850 MTS850 MTH800
Aliexpress UK
XiR P8200 XiR P8208 XiR P8260 XiR P8268 XiR P8608 XiR P8660 XiR P8668. XPR6300 XPR6350 XPR6380 XPR6500 XPR6550 XPR6580. APX4000 APX6000 APX6500 APX7000. Handheld Speaker Mic, easy to talk and listen without lifting your radio/transceiver.
eBay
2-pin Walkie Talkie Earpiece Headset with Microphone D Shape Earpiece Headset Accessories for Motorola GP88 CT150 P040 Radio
Aliexpress UK