micro speaker 16×5.1mm 8ohm 0.5W 90dB 

Short Description: 16*5.1mm, 480Hz, 8ohm,0.5W, 90dB, mini SPEAKER  Model number ESP-1651MN-R08W0.5A Rated/Max Input Power. 0.5W /0.8W Rated Impedance. 8Ω ± 15% Sound Pressure Level. 90dB(0.5W/0.1m) ± 3 dB at AVE 0.8K 1.0K 1.2KHz Resonance Frequency (Fo). 480±20%Hz Frequency Range. F0~20kHz.   Previous: ESP1034MN-R08W0.5A waterproof speaker, 10×3.4mm Next: ESP1737MN-R08W1.0A micro speaker, 17×3.7mm