| 摘要 |
An electronic computing device connected to a light sensor and an audio transducer and including to a memory in which digitised audio signals are stored. The stored audio signals are played back through the audio transducer in response to light conditions detected by the light sensor. A vibration sensor may also be used to trigger audio playback. The device further includes a wireless connection allowing the stored audio signals to be updated. u PJ Fig.2 |
