14.5 Audio recording capacityThe audio recording brings information to identify sources and correspondence with the recorded noise levels. It ischaracterized by a sampling rate and an accuracy expressed in number of bit. So a recording capacity is deduced:Sampling Pre and post recording Accuracy Recording capacity(HH:MM:SS)12 kHz 4 s 16 bits 00:50:0014.6 Battery lifeThe battery life directly depends on the retained measurement mode and ambient conditions.Reminder:• V1 channel without frequency analysis with or without audio• V1 + V2 channels without frequency analysis with or without audio• V1 channel with frequency analysis with or without audio• V1 + V2 channels with frequency analysis with or without audioModeV1 V2 A//C//LpK 1/1 oct Audio Battery life / HHX X 28X X X 20X X X 20X X X X 20X X X 28X X X X 20X X X X 20X X X X X 20Reference temperature: 20 °C14.7 Delivery and packaging• DS300 instrument with microphone and 1.25 m extension• Carrying case with protective foam• Adapter ring for acoustic calibrator• Fixing kit for microphone• Protective cover to wear on belt• Main charger with USB plug with cable• Calibration certificate• CD-rom with LDS23 software user manuals of the instrument and software14.8 Optional and accessories• Microphone V2 channel with fixing kit: D-M2• Direct microphone: D-MB• Acoustic calibrator 94 dB/1000 Hz: CAL200• Processing software: LDS300• Carrying case for 5 instruments: D-V5• Charger and transfer station for 5 instrument: D-S543