| PartNumber | CMS-40504N-L152 | CMS-40208N | CMS-40288N |
| Description | Speakers & Transducers 2W 4ohms 500Hz 40mm round w/wire | Speakers & Transducers 1W 8ohms 650Hz 40x20mm rectangle | Speakers & Transducers 2W 8ohms 550Hz 40x28.2mm rectangle |
| Manufacturer | CUI Inc. | CUI Inc. | CUI Inc. |
| Product Category | Speakers & Transducers | Speakers & Transducers | Speakers & Transducers |
| RoHS | Y | Y | Y |
| Product | Speakers | Speakers | Speakers |
| Type | Speaker | Speaker | Speaker |
| Frequency | 500 Hz | 650 Hz | 550 Hz |
| Sound Pressure Level | 100 dB | 98 dB | 85 dB |
| Impedance | 4 Ohms | 8 Ohms | 8 Ohms |
| Power Rating | 2 W | 1 W | 2 W |
| Shape | Round | Rectangular | Rectangular |
| Termination Style | Wire Leads | Solder Terminal | Solder Terminal |
| Minimum Operating Temperature | - 30 C | - 30 C | - 30 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Diameter | 40 mm | - | - |
| Depth | 5 mm | 8.4 mm | 11.8 mm |
| Magnet Material | Neodymium Iron Boron (NdFeB) | Neodymium Iron Boron (NdFeB) | Neodymium Iron Boron (NdFeB) |
| Cone Material | Mylar | Cloth | Cloth |
| IP Rating | - | - | - |
| Packaging | Tray | Tray | Tray |
| Series | CMS | CMS | CMS |
| Voltage Rating | 2.83 V | 2.83 V | 4 V |
| Brand | CUI | CUI | CUI |
| Product Type | Speakers & Transducers | Speakers & Transducers | Speakers & Transducers |
| Factory Pack Quantity | 50 | 50 | 60 |
| Subcategory | Audio Devices | Audio Devices | Audio Devices |
| Unit Weight | 0.437397 oz | 0.246918 oz | 0.444452 oz |
| Length | - | 40 mm | 40 mm |
| Width | - | 20 mm | 28.2 mm |
| Height | - | 8.4 mm | 11.8 mm |