Features:1) Buzzer plate: LPT3502W903-TA-01-0.7-1902) Buzzer: UTPT16B05-4.0F1 and UTPT13A05-4.0F13) Earphone: UT-E12134) Loud speaker: FP300F5) Transducer: TDB1223-03, TDP-2020P and TDC1220C-0116A6) W

Specifications:3-way car speaker1) Dimensions (inches): 6 x 9"2) Fre-response: 30-22kHz3) Sensitivity: 92dB/W/m4) Max. power: 250W5) Magnet: 20oz.6) Voice coil: 25mm7) Woofer: paper cone with foa

Specifications:1) 4-way car speaker2) Dimensions (inches): 6 x 9"3) Frequency response: 30-22kHz4) Sensitivity: 92dB/w/m5) Max. power: 250W6) Magnet: 20oz.7) Voice coil: 25mm8) Woofer: PP cone wi

Specifications:1) 4-way car speaker2) PP cone3) Dimensions (inches): 6 x 9"4) Voice coil: 1"5) Impedance: 4Ω6) Max. power: 160W7) Magnet: 100 x 45 x 18 (20 oz.)

Specifications:3-way car speakerIMPP cone rubber edge woofer66mm mylar dome mid-range20mm piezo tweeter1) Dimensions: 6 x 9"2) Frequency Response: 65-22kHz3) Sensitivity: 93dB/W/m4) Impedance: 4&

Product: computer and notebook speakerModel no.: RM2027H6A8DPJ12Specifications:Rated impedance: 4, 8, 16, 32, 64, 100, 150 (+/- 15%) ohmsMax. rated power: 0.25W (0.5W) Resonance frequency (fo): 750Hz

Product: condenser microphonesModel no.: EM-01Specifications:- Directivity:- Ominidirectional, unidirectional, noise cancelling, ominidirectional, unidirectional, noise cancelling, bi-directional- Siz

Product: condenser microphonesModel no.: EM-01Specifications:- Directivity:- Ominidirectional, unidirectional, noise cancelling, ominidirectional, unidirectional, noise cancelling, bi-directional- Siz

These earphones are high quality products.