The Profile Wireless 1-channel system includes all the core components freelance creators and videographers need to capture high-quality audio, including a 2-channel 2.4 GHz receiver, 1 clip-on microphone transmitter, versatile mounting and connection accessories, and a carrying pouch. You can easily turn the Profile Wireless 1-channel system into full 2-channel system by adding an additional Profile Wireless clip-on microphone transmitter and charging bar, each sold separately.Main Features:Signature Sennheiser sound for superior audio quality and connectivity over 2.4 GHz32-bit float recording; allows for extremely high dynamic range, precision, and recovery of clipped audioIncludes 2-channel 2.4 GHz receiver, 1 clip-on microphone, cold shoe mounting adaptor, USB-C and Lightning connector, threaded mounting sockets, and carrying pouchEasily upgrade to an all-in-one two-channel system by adding additional Profile Wireless clip-on microphone transmitter and charging bar, each sold separatelyQuick and easy set up no app requiredLong-lasting battery life provides up to 7 hours of runtimeVersatile capabilities: receiver and clip-on microphone connect to camera, computer, or phone16 GB memory in clip-on mic for up to 30 hours of internal recording; start/stop recording locally via clip-on mic or remotely via receiverSafety Channel Mode outputs backup audio at lower volume to help protect against clippingActivate Backup Recording Mode to automatically turn on internal recording if wireless signal becomes weakPre-paired clip-on microphone automatically connects to receiver, no configuration requiredLockable external 3.5 mm TRS connector on microphone for secure connection to optional Sennheiser lavalier micsDedicated headphone output for easy audio monitoringIncludes microphone mounting clip and magnet for attachment to clothingOLED receiver display includes gyro sensor that automatically orients displayGerman-engineered with durable build qualitySpecifications:Audio input: 3.5 mm TRS (Locking)Audio output: Digital output (USB-C), 3.5 mm TRS (Camera output), 3.5 mm TRS (Headphone output)Charging time (h): < 2Connection ports: USB-C, 3.5 mm TRSLatency (ms): < 8 msMax. sound pressure level: 113 dB SPLSignal-to-noise ratio: typ. 78.5 dB (A)Transducer type: CondenserConnectors: 3.5mm TRS, filter_tag_Connectors_USB_C