Size: Dia. 10mm 

Mylar thickness: 0.025-0.038mm

Power rating: normal 0.5W maximum 1.0W

Input: To be normal Oscillator 2.0 Volt

Voice coil impendance: 8-32Ω±15% at 1 KHZ

Sound pressure level: 120±3dB 0.1M/0.1W

Distortion: <5% at 1KHZ