Imou DS21 doorbell chime White vs Trust ACDB-7000C White

Comparison of DS21, ACDB-7000C

32 specifications	A Imou DS21 doorbell chime White Model DS21 View product	B Trust ACDB-7000C White Model ACDB-7000C View product
Designidentical
Reset buttonKnown for one	Yes	—Unknown — not stated by the source
On/off switchKnown for one	—Unknown — not stated by the source	Yes
CertificationKnown for one	—Unknown — not stated by the source	CE
Featuresidentical
Wi-FiKnown for one	Yes	—Unknown — not stated by the source
Wi-Fi frequencyKnown for one	2.4 GHz	—Unknown — not stated by the source
Wi-Fi standardsKnown for one	802.11b, 802.11g, Wi-Fi 4 (802.11n)	—Unknown — not stated by the source
Built-in speaker(s)Known for one	Yes	—Unknown — not stated by the source
Mobile operating systems supportedKnown for one	Android, iOS	—Unknown — not stated by the source
Number of melodiesKnown for one	—Unknown — not stated by the source	5
Volume controlKnown for one	—Unknown — not stated by the source	Yes
Adjustable volumeKnown for one	—Unknown — not stated by the source	Yes
Number of ringer volume levelsKnown for one	—Unknown — not stated by the source	4
Do not disturb functionKnown for one	—Unknown — not stated by the source	Yes
Power1 differ
AC input frequencyDiffers	90 - 240 Hz	50 - 60 Hz
Power consumption (typical)Known for one	5 W	—Unknown — not stated by the source
Input voltageKnown for one	—Unknown — not stated by the source	220 - 240 V
Power plug typeKnown for one	—Unknown — not stated by the source	Type C
Operational conditionsidentical
Operating temperature (T-T)Known for one	-10 - 50 °C	—Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	0 - 95%	—Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	52 mm	—Unknown — not stated by the source
DepthKnown for one	28 mm	—Unknown — not stated by the source
HeightKnown for one	95 mm	—Unknown — not stated by the source
WeightKnown for one	230 g	—Unknown — not stated by the source
Packaging contentidentical
Quick start guideKnown for one	Yes	—Unknown — not stated by the source
Installation instructionKnown for one	—Unknown — not stated by the source	Yes
ManualKnown for one	—Unknown — not stated by the source	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.