1.Introduction:
BS1703 is a Loudspeaker Wearable Megaphone Electronic Soldering DIY Kit.
Its design is inspired by regular loudspeakers to amplify the sound so that more people can hear you.
It is a very interesting DIY electronic product which enables users to understand the circuit more clearly and learn soldering skills.

2.Parameter:
1>.Product Name:BS1703 Loudspeaker Wearable Megaphone DIY Kit
2>.Work Voltage:DC 3.7V-5V
3>.Work Temperature:-20℃~85℃
4>.Work Humidity:5%~85%RH
5>.Size(Installed):105*85*35mm

3.Component List:

4.Note:
1>.Green LED: Power ON status and enough battery.
2>.Red LED: Charging.
3>.The microphone should not be close to the speaker, otherwise it is easy to produce howling.
4>.The closer you are to the microphone, the clearer the sound.

5.Installation Steps (please click and download the user manual from below):