HP DesignJet T730

Acoustic specications
Printer acoustic specications (declared according to ISO 9296).
Table 24-14 Printer acoustic specications
Idle sound power level < 3.4 B (A)
Operating sound power level 6.5 B (A)
Idle sound pressure at bystander position < 16 dB (A)
Operating sound pressure at bystander position 48 dB (A)
Wireless frequency bands
Printer is specied to work in the wireless frequency band of: 2.4 GHz (802.11b/g/n)
ENWW Acoustic specications 201