This Sennheiser EW-D CI1 SET Digital Wireless Guitar System is designed for guitar players who want to enhance their performance. Whether you're on stage or in the studio, this all-in-one set offers a seamless wireless experience. The system features a digital transmission operating in the UHF spectrum for enhanced range, reliability, and scalability. It also comes with a Smart Assist App that connects via Bluetooth Low Energy for a streamlined setup and operation at a distance. With an auto scan function, you can create reliable connections with minimal time and effort. The system has a frequency range of 470.2 - 526 MHz, with a THD of ≤ -60 dB for 1 kHz @ -3 dBfs input level. It operates in a temperature range of -10 °C - +55 °C and a relative humidity of 5 - 95 % (non-condensing). The EW-D EM unit has dimensions of 212 x 44 x 189 mm and weighs approx. 1000 g (without antennas and power supply), while the EW-D SKM-S unit weighs approx. 120 g and has dimensions of 63 x 80 x 20 mm (without antenna).