The Sennheiser SK 6212 B1–B4 (508515) is an ultra-compact digital bodypack transmitter from Sennheiser’s Digital 6000 Series, designed for broadcast, theatre and high-end live production where discretion and reliability are essential. Operating in the B1–B4 frequency range, it delivers pristine, low-latency digital audio with exceptional RF stability, even in challenging spectrum conditions.Exceptionally small and lightweight, the SK 6212 is ideal for concealed use with lavalier and headset microphones, while its robust metal housing ensures durability for professional use. With advanced encryption options and seamless compatibility with Digital 6000 receivers, it is a trusted solution for mission-critical wireless applications where size, sound quality and performance cannot be compromised.