Specifications:
RELIABLE DUAL DIGITAL WIRELESS MICROPHONE: The STZ-W7902 boasts effortless setup and operation. With its dual channel fixed frequency wireless microphone, there is no concern for frequency loss or drop. Its robust stability is unparalleled
WORKING AT LOW INTERFERENCE: The STZ-W7902 offers top performance and reliability in the UHF frequency range. Working within the low interference UHF band (480~600MHz), it also incorporates a dual filter design that greatly improves anti-interference capabilities. The result is a clear and seamless sound with incredibly low latency
CLEAR AND PRISTINE SOUND QUALITY: Featuring a professional cardioid dynamic capsule, the STZ-W7902 excels in reproducing clear, pure, and full sound while effectively eliminating background noise and howling
STURDY AND DURABLE MATERIAL: The durable steel mesh grille on this microphone provides exceptional protection against impact and corrosion. Its all-metal construction ensures long-lasting use
CONVENIENT DISPLAY AND VOLUME CONTROL: The receiver of the STZ-W7902 comes with a convenient display and a separate volume control for easy and efficient operation, making it the perfect choice for any professional setting
SUITABLE FOR MULTIPLE OCCASIONS: The STZ-W7902 is suitable for a range of events, including conferences, broadcasting, weddings, karaoke, and social gatherings. It is also well-suited for smaller venues like meeting rooms, auditoriums, schools, churches, and small stages
TRANSMITTER POWER: < 30mW
SPURIOUS EMISSION: < 40dB (with Carrier)
BATTERY VOLTAGE: AA1.5V x 2
BATTERY LIFE: > 10 Hours (Receiver) Desk-Top:
CARRIER FREQUENCY RANGE: UHF 480~600 MHz
OSCILLATION MODE: Quartz Controlled Fixed Frequency
STABILITY: 10PPM
SENSITIVITY: 2uV@sinad=12dB
MAXIMUM DEVIATION RANGE: 50KHz
S/N RATIO: > 105dB
T.H.D.: < 0.5%@ 1KHz
IMAGE REJECTION: 85 dB Typical
SPURIOUS REJECTION: 75 dB Typical 
FREQUENCY RESPONSE: 50Hz~15KHz 
SQUELCH CONTROL: Dual-Squelch Circuit 
MAX. OUTPUT LEVEL: Balanced: 0~40Omv, Unbalanced: 0-300mv
POWER SUPPLY: External DC Power Supply, O.4A, 12~15VDC
DIMENSIONS: 8.2” x 5.4” x 1.5” (209 x 138 x 39mm)