SWM-23R3.3-32N0.25R

Features: 
Mylar
Full Range Sound
Slim size
Waterproof
Characteristic Minimum Rated Maximum Notes
Type of Magnet NdFeB
Type of Frame Metal
Type of Diaphragm PET
Type Magnetic
Sound Pressure Level dB at 30cm 82.46 Measured 92±3dB at 0.25W and 10cm.
Power W 0.25 0.5
Frequency kHz 0.7 0.7 5
Available Input Impedance Ω 4 32 150
Width mm 23
Height mm 3.3

Dimension Drawing: