Philips 4000 series SMP4000. Maximum recording time: 24 h, Signal-to-Noise Ratio (SNR): 70 dB, Frequency range: 300 - 7500 Hz. Output power: 200 mW, Loudspeaker diameter: 3 cm. Interface: USB, USB connector type: Micro-USB. Battery technology: Lithium Polymer (LiPo), Battery life (max): 100 h, Recording battery life: 3 h. Weight: 120 g, Width: 82 mm, Depth: 85 mm
- Patented 100% lossless speech technology for smooth wireless voice recording
- Studio-quality microphone for best-in-class speech recognition results
- Decoupled free-floating microphone for precise recordings without background noise
- Superior touch sensor for integrated mouse function