RZ1359 Digital Sound Level Meter DB Meters Noise Tester in Decibels LCD ScreenThis is an easy to use and handy Mini Sound Level Meter. Designed for sound quality control that measures sound level from 30dBA up ~ 130dBA. It has auto range, wide measuring and frequency range (31. 5Hz ~ 8KHz), maximum hold, Frequency Weighting A and Auto Backlight. Just press one button readings are instantly displayed. A practical little tool great for noise pollution monitoring, home theater setup, health and safety compliance, vehicle noise

No additional any Apps

Bluetooth version/chip: Bluetooth 5

Space saving and very flexible

Large area of vacant heat dissipation

Hinges adjustable

food delivery

Built-in intelligent control chip + delay protection chip

Pillow shape: butterfly

all in sleek black

washable and attractive

Audio cable x1

General Compatible with Ulefone:  Armor 21