1. With USB adapter cable, you can use cell phone chargers and other USB port power supply
2. Schumann wave itself is not directly on the audio or video products to improve the sound and picture quality, but the role of the spatial environment, the human bodys perception of sound and image, the feedback of nature and life improve
3. The role of the output indicator control switch: night if you feel that the indicator light affects the rest, you can use this switch to turn off the indicator light, the instructions to turn off the indicator light, the other circuits work normally
4. With the shell need to install it yourself
5. Note: please use a separate regulated power supply for each unit to avoid mutual interference with multiple shared power supply, and to facilitate the separate placement of independent
6. Size: about 10.2 x 8cm; with shell: about 11.3 x 9.1 x 2.35cm
7. Weight: about 57g; with shell: about 170g