Sennheiser Sky avx-835s-4 handheld transmitter The sky avx-835 handheld transmitter for the AVX system is fully self configuring which makes the setup of radio frequencies a thing of the past. The AVX matches perfect to your camera's input sensitivity without having to adjust the audio level on the microphone. The mute switch on the handheld transmitter gives you full control during your interview.Features very fast setup plugs directly into XLR audio input Ultra compact receiver switches on/off by P48 Phantom power optimized dynamic range Auto frequency managementaes 256 encryptionlicense free mute switch metal Housing Made in germanyspecificationscolor: black frequency response: 20 Hz - 20000 Hz THD, total harmonic distortion: typ. 0.1 % Weight: Receiver: 87 g (incl energy pack) audio input: 3, 5 mm mini jack audio output: XLR operating temperature: -10 �C - + 55 C Signal-to-Noise ratio: > 90 dB(A) RF output power adaptive up to 250mw (peak) country specific operating time: > 4H (receiver), Type 15 H (transmitter with liion energy pack) modulation: GFSK (DECT) audio output Level: -30 dBu - 0 dBu in 4 steps battery specification: li-ion 3, 7 V DC, > 120 dB(A) frequency band: 1880 - 1930 MHz (country specific) sampling rates: 24 bit/ 48 kHz latency: 19 MS