Lavalier double BOYA / compatible with phone

Brand: Indefined
Description: Purpose: for podcasts/radio/television, design: lapel clip, connector: jack 6.3 mm, mini jack 3.5 mm, power supply: built-in battery
Signal to noise ratio: 74 dB
Batteries: LR44
Purpose: For podcasts/radio/tv
Impedance: 1000 Ohm
Length of cable: 4 m
Nutrition: Built-in battery
Max. frequency: 18000 Hz
Min. frequency: 65 Hz
Microphone connector: jack 6.3 mm, mini jack 3.5 mm