Earsinger M214C 2.5mm Headset with Microphone &Volume Mute Controls, M140 M210C TCA430 Headsets with 2.5mm Jack Compatible for Polycom321 CT14 CiscoSPA303 UnidenDECTAT&T ML17929 VtechRCA sold2025 CONTROL 2 SPEAKERS: multichannel speaker

CONTROL 2 SPEAKERS: multichannel speaker switcher controls up to 2 pairs of speakers that connected to a stereo amplifier at the same time or in combination

Cable length about:8inch(20cm)

protect internal electronic components from oxidation & aging

Battery would get you through about 12 hours of the day with no disconnects

2mmTIG Gas Lens Collets Body 1 x 13N21

Earsinger M214C 2.5mm Headset with Microphone &Volume Mute Controls, M140 M210C TCA430 Headsets with 2.5mm Jack Compatible for Polycom321 CT14 CiscoSPA303 UnidenDECTAT&T ML17929 VtechRCA sold2025 CONTROL 2 SPEAKERS: multichannel speakerEarsinger M214C 2. 5mm Headset with Microphone &Volume Mute Controls, M140 M210C TCA430 Headsets with 2. 5mm Jack Compatible for Polycom321 CT14 CiscoSPA303 UnidenDECTAT&T ML17929 VtechRCA QUALITY ASSURED: We want to make you happy, if any products problem, please contact us, we'll provide a full refund if you're not 100% satisfied with our Earsinger 214C Headset. Noise Reduction Sound Card &2023 Upgraded New Version headsets build with noise reducing