![](/images/new-backgrounds/1310913/31091361x1.webp)
3.Connecting Optional Headphones
Simply plug the optional headphones into either Headphone 1 jack or Headphone 2 jack on the right side of the D1718. ( Refer to Figure 46)
Figure 46
Plugging into Headphone jack 1 will disable the internal speakers.
9. Specifications
Compatible DISC: DVD/CD/MP3
Signal system: NTSC
Panel size: 7 inch
Frequency response: 20 Hz to 20 kHz
Video output: 1
Audio output: 1.4Vrms/10kOhm
Audio S/N: Better than 60 dB
Dynamic range : Better than 85 dB
Laser: Semiconductor Laser, Wave Length: 650 nm/795 nm
Power source: DC 9~12V
Power consumption: 12 W
Operating temperature: 41~95°F (5~35°C)
Weight : 1.36lbs (0.615 kg)
Dimensions (W x D x H):7.87 X 5.92 X1.34 inches (200 x 150.5 x 34 mm)
Battery Type:
31