Listen Technologies MH-4200-072-P0 Meeting House Receiver Package; Includes (1) LA-421 1-Port USB Charger; 57 Wide and Narrow Band Channels; Two 3.5mm Output Jacks The MH-4200-072-P0 package makes it easy to order a receiver and charger, allowing an exceptional listening experience in your meeting house chapel. The package includes the MH-4200-072 Receiver (LR-4200-072 with customized programming) and a LA-421 1-Port USB Charger Key Features: -Ideal for personal use in venues with existing 72 MHz assistive listening systems -Includes MH-4200 receiver and USB charger -Smallest device of its kind -Can be worn around the neck, with the belt clip, or concealed in a pocket -Advanced green battery technology Specifications: -System Distortion: <2% total harmonic distortion (THD) at 80% deviation -System Frequency Response: 50 Hz - 15 kHz (±3 dB) -System Signal to Noise Ratio: SQ enabled 80 dB, SQ disabled 60 dB -User Controls: Power, up/down volume -Programming: Via software and USB port -LEDs Flashes: when batteries are low or to indicate charging, solid when fully charged -Display Channel: designation,battery level, unit number, charging status -Frequency Range: 72.025-75.95 MHz -Number of Channels: 17 wide band, 40 narrow band -Sensitivity: .6uV typical, 1 uV maximum for 12 dB sinad -Frequency: Accuracy ± .005% stability 32 to 122 ºF (0 to 50 ºC) -Squelch: Programmable in 20 steps, automatic on loss of RF signal -Power Supply: Micro USB connector, 5 V, 500 mA -Battery Type: Lithium Ion 3.7 Vdc, 1200 mAh -Battery Life: 8 Hours of continuous use -Battery Charging Time: Fully charged in 2.5 Hours -Color: Black -Unit Weight: with Batteries 2.40 oz. (68 g) -Dimensions (H x W x D): 3.75 x 2.00 x 0.64 inches -Dimensions with Belt Clip: 3.75 x 2.00 x 0.80 inches -Shipping Weight: 3.20 oz. (91 g) with 1.0 pounds (454 g) minimum