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SENNHEISER SKM 3-E Handheld Transmitter Microphone - 863-865 MHz

Fully tested and working - Requires 9v square battery - Missing plastic cap from antenna however doesn't affect use and can be purchased for a few pounds online

The Sennheiser SKM 3-E is a wireless handheld microphone transmitter designed for the freePORT series, operating on the license-free 863–865 MHz ISM frequency band. Key specifications include an RF output power of 10 mW, a frequency response range optimized for vocals, and an operating time of roughly 10 hours using standard batteries

Technical Specifications

Frequency Range: 863–865 MHz (Band E)

RF Output Power: 10 mW

Audio Frequency Response: 80 Hz to 16,000 Hz

Signal-to-Noise Ratio: >95 dB

Total Harmonic Distortion (THD): < 1%

Power Supply: 2 AA batteries (1.5 V) or equivalent rechargeable pack

Operating Time: Approx. 10 hours

Dimensions: Length approx. 285 mm, diameter 35/50 mm

Weight: Approx. 210 g (without batteries)