JBL Wireless microphone set, kit of 2 battery-powered wireless microphones with 6 hours of battery life

Specifications:
-Wireless range:10 m.
-Microphone power source type: Battery.
-Operating frequency: 470 – 960.
-Microphone frequency response: 65 - 15000 Hz.
-Type of operating frequency: Ultra High Frequency (UHF).
-Total harmonic distortion (THD): 0.5%.
-Dynamic range: 100 dB.
-6.35 mm (1⁄4-inch) output: 1.
-Battery technology: Lithium Ion.
-Battery type: Built-in battery.
-Battery voltage: 3.7V.
-Receiver dimensions: (W x D x H) 70 x 80 x 20 mm.
-Receiver weight: 54 g.
-Microphone weight: 247 g.
-Code: 6925281981425