Sennheiser 835-S Set (R1-9) Wireless Handheld Microphone This set consists of 2 x EW-DX SKM-S (handheld with mute switch), 2 x MMD 835 capsule (cardioid, dynamic), 1 x EW-DX EM 2 rackmout receiver (2 channels) and 2 x BA 70 rechargeable batteries. Sennheiser EW-DX simplifies your professional workflow by utilizing refined technologies and decades of research to deliver a digital UHF system that can be scaled with ease. With its advanced feature set and hardware options, classrooms, corporate campuses, and live productions benefit from a network-ready system that is designed to integrate seamlessly. The system quickly assesses your environment and uses equidistant channel spacing to deploy frequencies while tools like Sennheiser?s Control Cockpit, Wireless Systems Manager, and Smart Assist App allow you to monitor your system remotely. In-device charging, 12-hour battery operation, and switching bandwidth up to 88 MHz are only a few more of the many features that make EW-DX the right tool for the job. Perfect for Presenters and Singers. All-in-one digital wireless lavalier set for those who speak and present, featuring Sennheiser's renowned MKE 2 omni-directional clip-on lavalier microphone. Features 134 dB input dynamic range - no need to set gain on your wireless transmitters at all, thanks to proprietary Sennheiser Performance Audio Codec (SePAC) AutoScan-feature quickly scans your environment and deploys frequencies with equidistant channel spacing - even without RF knowledge Network enabled for expanded remote control with Sennheiser Control Cockpit, Wireless System Manager (WSM - Available in mid-2023) and 3rd party media control systems via plug-in Remote control via Smart Assist App over Bluetooth Low Energy (BLE) at distances up to 25 meters (Available in late 2023) Secure transmission of confidential content using AES 256 encryption Up to 12 hours of operation time with rechargeable lithium ion battery BA 70 (included) Function buttons - control all the transmitter settings directly from the handheld including button lock function Persistent E-Ink display for "always on" information - parameters visible on screen even when taking out batteries Equidistant channel spacing to easily allocate intermodulation-free channels: Standard Mode with 600 kHz spacing for up to 146 channels; Link Density (LD) Mode with 300 kHz spacing for up to 293 channels Up to 88 MHz switching bandwidth Low latency of 1.9 ms wireless transmission thanks to proprietary Sennheiser Performance Audio Codec (SePAC) Digital audio trim Transmitters with charging contacts for in-device charging with CHG 70N charger (sold separately) Sennheiser Standard Capsule Interface - compatible with a wide range of Sennheiser and Neumann capsules (sold separately) Versatile charging options optionally available: CHG 70 N, L 70 USB, LM 6070 Module for L 6000 full rack charging station (Availability in 2023) Worldwide usage (specific frequencies subject to local RF regulations) Specsification Dimensions: 212 x 44 x 189 mm Weight (g): approx. 1000 g (without antennas and power supply) Latency (ms): 1.9 ms Polar pattern: Cardioid Sensitivity: 2,1 mV/Pa Transducer principle: Dynamic Transducer type: Dynamic Connection: Wireless Total harmonic distortion (THD): -60 dB for 1 kHz @ -3 dBfs Input level Transducer principle: Dynamic Latency (ms): 1,9 ms Frequency Specifications Audio frequency response: 20 Hz - 20 kHz (-3 dB) @3 dBfs Acoustic Properties Dynamic range ( ): 134 dB Audio output level: 18 dBu max. Amblent Conditions Operating relative humidity (%): 5-95% (non-condensing) Operating temperature (C): -10 C - +55 C (14F - 131 F) Battery capacity (Ah): 1.72 Battery count: 2 Battery Included: Y Battery voltage (V): 3.8 Charging current (mA): ?1A Electrical Properties Sensitivity: 2,1 mV/Pa Input voltage: 11-13 Vor PoE IEEE 802.3af Class O (CAT5e or higher) Transmission power (mA): Audio link: 10 mW ERP (Range Y1-3: 12 mW ERP) BLE: max. 10 mW EIRP Dimensions: 212 x 44 x 189 mm Height (mm): 73 Length (mm): 405 Weight (g) Width (mm): approx. 1000 g (without antennas and power supply) Product height: 73 Product length: 405 Product weight (g): 1000 Product width: 350 Bluetooth transmission frequency: 2402-2480 MHz