FT-710 Aess 50MHz 100W HF Transceptor HF SDR Radio Móvil con Micrófono os67

AESS (Acoustic Enhanced Speaker System) with the supplied SP-40 speaker to create High-fidelity audio output. - Antenna impedance: 50Ω, unbalanced (antenna tuner off); 16.7-150Ω, unbalanced (antenna tuner on, 1.8MHz-29.7MHz amateur band); 25-100Ω, unbalanced (antenna tuner on, 50MHz amateur band).

eBay