Features:    Wireless UHF System: The system includes one handheld microphone and one receiver, featuring UHF wireless transmission, 10 channels and infrared 80m open area operation, with OLED screen to display parameters.       Dynamic Handheld Microphones: Portable handheld microphone features dynamic pickup, total 26.5cm/10.4inch length makes it comfortable to hold, widely suitable for broadcast, interview, church and more.       Mountable Receiver: The receiver can be mounted on camera via integrated cold shoe or on tripod via 1/4inch screw thread, with 3.5mm output for headphone real-time monitoring.    Battery Powered: Powered: Built-in lithium battery in receiver provides 6 hours working duration, recharged via power adapter. The dynamic microphone is powered by 2pcs AA batteries, which are not included.       Useful Accessories: The package includes 3.5mm TRS audio cable for output with camera, and power cable for charging, aluminum alloy suitcase for neat storage and carrying.        Specifications:    Brand: ACEMIC    Model: DV-500H    Main Material: Aluminum alloy    Transmission Range: 80m(open area)        --Transmitter    Frequency Preparation: PLL Synthesized Control    Frequency Deviation: ±48KHz    Microphone Type: Dynamic    Polar Pattern: Cardioid    Power Supply: 2 * AA batteries(not included)    Operating Voltage: 3V    Length: 26.5cm / 10.43in        --Receiver    Frequency Preparation: PLL Synthesized Control    Frequency Response: 60Hz-17KHz±3dB    Signal to Noise Ratio: ≥105dB    T.H.D: 100dB    Channels: 10    Output: 3.5mm line out and earphone out    Interface: Infrared    Antenna: SMA detachable antenna    Power Supply: Built-in lithium battery, 1000mAh    Operating Voltage: 3.7V    Operating Time: 6h    Dimensions(L*W*H): 10.2 * 6.4 * 2.4cm / 4.02 * 2.52 * 0.94in        Package Size: 32 * 23 * 8cm / 12.6 * 9.06 * 3.15in    Package Weight: 1500g / 52.91oz