G Shape Earpiece for Motorola SL300 SL1600 SL2600 SL4000 SL7550 SL1K Digital Radio In-line PTT Microphone: Amazon.co.uk: Electronics & Photo
Motorola SL1600 SL2600 SL4000e SL4010e TLK100 Swivel Earpiece (With Mic & PTT) - Radiotronics UK
Motorola SL1600 Mototrbo Portable Two Way Radio
Kymate SL300 Earpiece with Mic Ptt for Motorola SL7550E SL1600 SL2600 SL7590 SL4000 SL1K SL2M SL8050 PMLN7189A Two Way Radio 1 Pin Swicel Headset Walkie Talkie: Amazon.co.uk: Electronics & Photo
CoPacks Headset ES-H01 suitable for Motorola SL1600, SL2600, SL4000 | Headsets | Radio Accessories | Products | Akkuplanet
D-Shape Motorola SL1600 SL4000e SL7550 SL7590 Radio Swivel Inline PTT Earpiece | eBay
CoPacks Headset ES-PA2 suitable for Motorola SL1600, SL2600, SL4000 | Headsets | Radio Accessories | Products | Akkuplanet
Kymate SL300 Earpiece with Mic Ptt for Motorola SL7550E SL1600 SL2600 SL7590 SL4000 SL1K SL2M SL8050 PMLN7189A Two Way Radio 1 Pin Swicel Headset Walkie Talkie: Amazon.co.uk: Electronics & Photo
Motorola SL1600 SL4000e SL7550 SL7590 Radio C-Shape Swivel Inline PTT Earpiece | eBay