SQ-316 handheld transmitter Features 16 factory preset user-selectable VHF frequencies from 160 - 260 MHz per 10 MHz bandwidth. ±40 KHz peak deviation. Pilotone Control. Very low spurious emission passed the stringent CE & FCC regulations. Changeable dynamic or condenser microphone capsule. No handling noise in handheld with condenser capsule. Handheld housing coated with rubberized paint for smooth holding. Two-stage Sensitivity switches for handleld microphones. Rotary switch channel selector. Low current consumption. Up to 12 hours of operation with a single 9V Alkaline battery. Color ring on handheld microphone identifies channel. Specifications Model SQ-316 Frequency Range VHF Band 160 - 260 MHz Switching Bandwidth 10MHz Switchable Frequency 16 RF Power Output < 35mW** Spurious Emission > 60 dB below carrier Dynamic Range > 110 dB Display Screen LED T.H.D < 0.5% Peak Deviation ± 40 KHz Antenna Built in Battery Type 9V x 1 Operating Life (Alkaline) 12 hours Charging Function NO Microphone Capsule Dynamic or condenser type Dimension (mm) φ50*260 Weight (g) 200 Patent & Approval - ** Remark: The above specifications are subject to change without prior notice. The output power may vary from country to country.