Aimanfun 904 Micro-Current Sleep Aid Portable Wireless Fast Sleep Device, 904 Sonoff Isolated SMPS (Switching Mode Power

Isolated SMPS (Switching Mode Power Supply)

noise canceling microphone makes you answer calls without reaching your phone

2 signals input and 2 signals output

Relieve arm fatigue caused by long driving

Aimanfun 904 Micro-Current Sleep Aid Portable Wireless Fast Sleep Device, 904 Sonoff Isolated SMPS (Switching Mode Power1. Deepen deep sleep and improve sleep quality 2. Physical recuperation, radio waves to help sleep, intelligent monitoring, long lasting battery life, no need to grip, three modes, light prompts 3. Stimulate neurotransmitters in the cerebral cortex through micro currents, regulate emotions, and promote sleep 4. 3 levels of smart mode adjustment, with light prompt 5. Comfortable elastic band to prevent falling 6. Exquisite workmanship and simple