The Solidcom C1 Pro, Hollyland's first-of-its-kind full-duplex wireless intercom headset system featuring dual-mic Environmental Noise Cancellation (ENC) technology, is incredibly lightweight and easy to use. It is a true game changer with built-in ENC, ideal for production teams working in loud environments where exceptional communication clarity is essential.This new generation headset system features advanced DECT 6.0 technology, a wideband audio range of 150Hz to 7kHz, and a reliable LOS communication range of up to 350m. Key Features: Dual-Mic ENC PTT Function 150Hz–7kHz Wideband Audio 1,100ft (350m) Reliable Range DECT 6.0-Enhanced Stability Ultra-long Duration Increased Portability & Durability Ready Out of Box Backward Compatibility A & B Dual Grouping (requires HUB) Three-System Cascaded Connection ANNOUNCE Function Specifications: Transmission Range 1,100ft (350m) LOS Frequency Band 1.9 GHz (DECT) (varies by country and region) Modulation Mode GFSK RX Sensitivity <–90dBm Battery Capacity 700mAh (2.66Wh) Operation Time Remote headset: >10 hours (ENC ON) Master headset: >5 hours (ENC ON with 5 remote headsets) Master headset: >4 hours (ENC ON with 7 remote headsets) Charging Time About 2.5 hours Frequency Response ENC OFF: 150Hz–7kHz (fluctuation range: ±6dB) ENC ON: 150Hz–7kHz (fluctuation range: ±10dB) Signal-to-Noise Ratio 71±2dB@94dBSPL,1kHz Distortion <1%@94dBSPL, 150Hz–7kHz Microphone Type Electret Input SPL >115dBSPL Output SPL 94±3dBSPL (@94dBSPL, 1kHz) ENC 20dB±2 Net Weight About 170g (6oz) with the battery included for each wireless headset Temperature Range 0℃ to 45℃ (working condition) –10℃ to 60℃ (storage condition In the Box (4 person set): 1x Master Headset (With Red Nameplate) 3x Remote headset (with blue nameplate) 1x Charging case 4x Over ear leather cushion 8x Battery 4x Microphone cushion 1x DC adapter 4x On-ear foam cushion 1x USB-A to USB-C cable 1x Storage case 1x User Manual 1x Warrenty Card