Approximate Battery Life | WAV 48 kHz/16-Bit: 7.5 Hours (Alkaline, 2 Channels, Backlit Display, Phantom Off, with Headphones) 10.5 Hours (NiMH, 2 Channels, Backlit Display, Phantom Off, with Headphones) 16.5 Hours (Lithium, 2 Channels, Backlit Display, Phantom Off, with Headphones) WAV 48 kHz/24-Bit: 5 Hours (Alkaline, All Channels, Backlit Display, Phantom Off, with Headphones) 7 Hours (NiMH, All Channels, Backlit Display, Phantom Off, with Headphones) 10.5 Hours (Lithium, All Channels, Backlit Display, Phantom Off, with Headphones) WAV 192 kHz/24-Bit: 0.5 Hours (Alkaline, All Channels, Backlit Display, Phantom On, with Headphones) 1.5 Hours (NiMH, All Channels, Backlit Display, Phantom On, with Headphones) 3.5 Hours (Lithium, All Channels, Backlit Display, Phantom On, with Headphones) |