May be started in 2019:
- Perpetua, 30-years-life power device
- Universal speaker
SDAP Hi-End Audio player. Fault tolerant, designed to run 24/7 for over 10 years.
E-Lock Pin coded remote controlled lock.
MR-624 Kevlar Studio Monitor. 40Hz-20Khz +-1.2db
EPSC UPS / Lead Acid Battery charger.
K828 Hi-Fi Karaoke Speaker. 52Hz-22Khz +-3db
EMR Online reloadable Energy meter.
Draw LED panel