Sennheiser EK IEM G4-A1 - Stereo miniature receiver, 470–516 MHz / N/A

Characteristics Minimum operating temperature: -10 °C Maximum range: 100 m Working time: 4 - 6 hours. Maximum operating temperature: 55°C Total Harmonic Distortion (THD): ≤ 0.9% Radio frequency range (RF): 470 - 516 MHz Operating frequency type: Ultra high frequency (UHF) Package contents Package contents Receiver x 1 User manual x 1 Headphones x 1 AA battery x 2 Safety warning Warnings Avoid contact with water. Use according to manufacturer's recommendations. Do not open the device casing. Receiver Receiver weight: 125 g Receiver depth: 2.4 cm Receiver width: 6.4 cm Receiver type: Bodypack receiver Battery type: AA battery Display type: LCD Number of batteries: 2 1/8” (3.5mm) headphone outputs: 1 Receiver height: 8.2 cm Receiver Display: Yes