R16 1 For 1 Smart Wireless Self-Powered Hotel Home Electronic Call Doorbell(US Plug White) Type-Computer Audio The tail adopts the precision

The tail adopts the precision bearing design

Microsoft Windows NT 4

Material Stainless steel

Up to 3 devices can be paired

Connector 1: Type-C male plug

R16 1 For 1 Smart Wireless Self-Powered Hotel Home Electronic Call Doorbell(US Plug White) Type-Computer Audio The tail adopts the precision1. IP68 waterproof grade, can be exposed to the sun and rain 2. Waterproof, dustproof and shockproof, sturdy and beautiful body 3. The transmitter self generating design, no battery is required, energy saving and environmental protection 4. The transmitter can be pressed around, easy to use 5. 4 level volume adjustable, 58 songs can be replaced 6. Volume range: 0 150dB 7. Power supply mode: transmitter self generating design, receiver in line 8.