Sumsoctober USB-Connected Telegraph Practice Key | Morse-Code Simulator with Sound & Light | Stainless Steel, Alloy & Rosewood Base(B)

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[PACKAGE OPTIONS] Package option A Switch x1; Connecting wire xPackage option B Switch x1; Connecting wire x1; Communication wire x1. Select the option that fits your setup for manual telegraph key practice or station integration. [REALISTIC SOUND AND LIGHT SIMULATION] Built-in sound and light modules reproduce telegraph tones and visual keying so a regular computer with compatible software such as LAKE can be used for Morse code practice and training without radio transmitters. [FINE MATERIALS AND HAND FINISH] Hand-polished rosewood base displays natural grain and dense texture while stainless steel and aluminum alloy parts resist wear; compact 120 x 70 x 20 mm size combines classic looks with desktop convenience. [PRECISE ACTION AND SENSITIVE CONDUCTORS] Floating bearings and pure copper conductors a sensitive, consistent press and reliable conductivity; anti-slip rubber feet add stability and shock absorption during fast keying. [PC AND RADIO COMPATIBILITY] USB connection and 5mm external interface match common telegraph machine inputs; button cell 3.6V powers the sound and light module; suitable for beginners using computer simulation and experienced users as an operational telegraph key.