Sennheiser SL HANDHELD 865 DW-3-EU

Type: Wireless Handheld Microphone
Frequency Range: 566 – 608 MHz
Transmitter Power: 10 mW
Microphone Capsule: Dynamic cardioid
Frequency Response: 40 Hz – 20 kHz
Sensitivity: 2.2 mV/Pa
Battery Life: Up to 15 hours
Operating Range: Up to 100 meters (328 feet)
Connectivity: Sennheiser proprietary wireless technology
Additional Features: On/off switch, battery status LED, mute button