Sennheiser Introduces Ultra-portable 1-channel Edition of Profile Wireless 2.4 GHz Ennovations Knowledge Hub Latest by Elton - May 21, 2025 Sennheiser has introduced a lightweight, ultra-portable 1-channel edition of its Profile Wireless 2.4 GHz microphone system, aimed squarely at solo creators. This version meets the everyday needs of single-person productions yet uses the same 2-channel receiver as the larger system, making future expansion simple. Offering up to seven hours’ runtime