The Motorola EVX, Vertex Standard Horizon HX audio accessory connector is a 3.5mm, threaded, straight plug and works with Horizon HX210 HX300 HX400 HX890 radios along with a wide variety of additional Standard Horizon, Vertex, and Motorola radios.
The 3.5mm, threaded, straight headset plug is a 4 position plug supporting mono headphone output and mono microphone input. This connector is threaded at the top to hold it securely in place, and has a straight cable connection and strain relief.
EarHugger® manufactures speaker microphones, headsets, and earpieces for the Motorola EVX-S24, Horizon HX210 HX300 HX400 HX890 radios with the Horizon HX connector. Product model numbers ending in 1030 utilize the Horizon HX audio accessory connector.
