The Valley Enterprises SM3-K Speaker Microphone 3 is a compact, lightweight, and rugged shoulder mic built for clear, reliable communication in demanding environments—backed by a 3-year limited warranty for added peace of mind. Designed to fit comfortably in small to medium-sized hands, it’s easy to use all day while still delivering strong, intelligible audio to and from your Kenwood two-way radio (Kenwood K connector).

A high-quality front-facing speaker ensures your incoming audio is loud and clear, while the speech-tuned microphone element is engineered for crisp voice transmission. The 360° rotating clip lets you position the mic exactly where you need it—on a lapel, epaulet, or vest strap—without restricting movement.

For added versatility, the SM3-K includes a 3.5mm accessory port on the bottom, allowing you to connect a receive-only earpiece when you need more discreet listening. The heavy-duty coiled cable, built with a 4.2mm Kevlar-reinforced design and molded stress relief, is made to withstand frequent use and a wide range of temperatures, from -20°C to 50°C.

Despite its tough build, this speaker mic remains comfortable and easy to carry, with a total weight of only 3.8 oz and compact dimensions of 2" x 1" x 2.8". Whether you’re working indoors or outdoors, the SM3-K delivers consistent performance you can count on.

Key Features

• Compact, lightweight design ideal for small to medium-sized hands
• Kenwood K connector for compatible Kenwood two-way radios
• Front-facing speaker for clear, loud audio
• Speech-tuned microphone for crisp voice communication
• 360° rotating clip for flexible mounting and comfortable wear
• 3.5mm accessory port for receive-only earpieces
• Heavy-duty 4.2mm Kevlar-reinforced coiled cable with molded stress relief
• Operating temperature: -20°C to 50°C
• Total length: 28"; cable length: 24"
• Total weight: 3.8 oz; dimensions: 2" x 1" x 2.8"
• 3-year limited warranty for long-term reliability and support

Compatible Radios:

• Kenwood:
  • K Series: K-2300
  • NX Series: NX-1202, NX-1302, NX-3220, NX-3320, NX-3420, NX-P1000
  • TH Series: TH-22AT, TH-235A, TH-28A, TH-42AT, TH-48A, TH-77A, TH-78A, TH-D7A(G), TH-F6, TH-F6A, TH-G71A, TH-K2AT
  • TK-200 Series: TK-208, TK-2100, TK-2102, TK-2130, TK-2160, TK-2170, TK-220, TK-2200, TK-2202, TK-2212
  • TK-2300/3300 Series: TK-2312, TK-3312, TK-2317, TK-3317
  • TK-2360/3260 Series: TK-2360, TK-3260
  • TK-240/340 Series: TK-240, TK-240D, TK-248, TK-340, TK-340D, TK-348
  • TK-250/350 Series: TK-250, TK-350
  • TK-260/360 Series: TK-260, TK-260G, TK-270, TK-270G, TK-360, TK-360G
  • TK-370 Series: TK-370, TK-370G, TK-372G, TK-373
  • TK-308 Series: TK-308
  • TK-3100 Series: TK-3100, TK-3101, TK-3102
  • TK-3130/3160 Series: TK-3130, TK-3131, TK-3160
  • TK-3170 Series: TK-3170, TK-3173
  • TK-3200 Series: TK-320, TK-3200, TK-3201, TK-3202, TK-3212
  • TK-3230 Series: TK-3230, TK-3230DX
  • TK-3350/3360 Series: TK-3350, TK-3360
  • TK-430/431 Series: TK-430, TK-431
  • TK-D Series: TK-D240, TK-D340