Assistive Listening System ALS700

Assistive Listening System for School - If you have to enhance the listening ability in a learning environment such as a classroom, library or computer lab, consider this Assistive Listening System by HamiltonBuhl designed specifically for education applications. With this solution you can enhance the sound for students. For some students this can be a tremendous help are unable to hear clearly. It is well-recognized that hearing is critical to speech and language development, communication, learning and social interactions. This solution helps alleviate this potential challenge. Each ALS700 System includes: 1 - Transmitter 6 - Receivers 6 - Earbuds (ALSH700 on-ear headphones available for purchase) 1 - Carry case   Specifications: Dimensions: 18 L x 4 H x 13 W Weight: 5.7 lbs. Overall System Performance Frequency Response 100Hz - 8KHz Signal to Noise Ratio 41dBTotal Harmonic Distortion &l: 0.5% RF Carrier Frequencies Channel 1: 75.5MHz Channel 2: 75.9MHz Frequency Stability: 0.005% Modulation FM ± 75KHz max. Operating Range Up to 150 feet line of sight Transmitter: Mic Input Connector: 1/4" Phone jack Impedance: Unbalanced Line Input Connector: 1/4" Phone jack Impedance: 100K unbalanced Antenna Permanently mounted, telescoping Power Output 13dBm Power Requirements 5V DC, regulated @ 200mA Adapter included Receiver: Audio Output 100mW Connectors 3.5mm jack for earphone output Earphones: Mono earbuds Antenna Integral with earphone cord Sensitivity 3uV for 12dB with squelch defeated Squelches at 10uV for min. 50dB S/N ratio Mute Threshold 5 - 8uV Power Requirements Three (3) 1.5V AAA size batteries