Imou DS21 doorbell chime White vs Trust ACDB-6600C White

Comparison of DS21, ACDB-6600C

35 specifications	A Imou DS21 doorbell chime White Model DS21 View product	B Trust ACDB-6600C White Model ACDB-6600C View product
Designidentical
Product colour	White	White
Indication light	Yes	Yes
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
Connection type	Wireless	Wireless
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
Power source typeDiffers	AC	Battery
AC input frequencyKnown for one	90 - 240 Hz	—Unknown — not stated by the source
Power consumption (typical)Known for one	5 W	—Unknown — not stated by the source
Battery typeKnown for one	—Unknown — not stated by the source	AA
Battery voltageKnown for one	—Unknown — not stated by the source	1.5 V
Number of batteries supportedKnown for one	—Unknown — not stated by the source	3
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 dataidentical
Package type	Box	Box
Packaging contentidentical
Quick start guideKnown for one	Yes	—Unknown — not stated by the source
Quantity	1	1
Batteries includedKnown for one	—Unknown — not stated by the source	No
Installation instructionKnown for one	—Unknown — not stated by the source	Yes
ManualKnown for one	—Unknown — not stated by the source	Yes
Batteryidentical
Battery technologyKnown for one	—Unknown — not stated by the source	Alkaline

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.