EN 54 certified 10 W Bidirectional sound projector intended for high quality speech and music reproduction in indoor and outdoor applications.- Rated Power: 10 Watts, Power Tapping:10 / 5 / 2.5 / 1.25 W- Effective frequency range(-10 dB) :75 Hz to 20 kHz- SPL at rated power (1Khz at 1 m) 90 dB- Opening Angle 1 KHz / 4 KHz (-6 dB):165° / 60°- Self extingguishing acc. to UL94 V0Water and dust protection according to IEC 60529, IP 65Emergency according to EN 54 24 / BS 5839 8 / EN 60849