These internal speakers are designed for uses in cord or cordless phones and headphones. The superior sound technology delivers precise levels of listening comfort. Update your speaker system with these versatile internal speakers.

• Rated input: 0.5W.
• Maximum input: 1W.
• Frequency range: 200-20kHz.
• Resonance frequency: 650 ±20%.
• Impedance at 1kHz: 8 ±15%Ω.
• Sound pressure level: 90 ± 3dB aver at 0.8, 1.0, 1.2, 1.5kHz.