The maximum sound pressure level:132dB (THD≤1.0% at 1KHz)
Service voltage:1.5 V battery
Parcel Weight:731 g
Computer connecter:3.5mm
Attentions:
-Turn the volume to a minimum at first, and then connect the sound card and microphone (Can be used directly inserted into the computer ), adjust the volume turning up slowly to suitable, to avoid Speakers or headphones been impacted and produce whistlers
-Do not drop it from high or impact strongly for protecting the ound head and precision circuit element
