音箱喇叭型号：HP045-4R4528C-C规格：方形45mmH28mm4Ω5W橡皮盆

• Size： 45*45mm H 28 mm
• Impedance： 4 ±20% Ω
• SPL(1W 1m sine wave) 83 ±3dB(at 800,1000.,1200,1500Hz )
• Resonance frequency 140 ±20% Hz
• Frequency Range Fo~10KHz
• Rated input power 5 W
• Maximum input power 8 W
• Buzz & Rattle must be normal (at sine wave 4.47 V)
• THD MAX 5% (RATED POWER INPUT at1000HZ）
• Operating temperature -20~+60℃
• Storage temperature -20~+60℃
• Environmental Protection Regulation RoHS