Description High-Performance 2.4 GHz Digital Wireless System with Lavalier Microphone, Belt-Pack Transmitter and Receiver ULM300LAV Our new ULTRALINK ULM300LAV Wireless Lavalier Microphone System once again breaks the affordability barrier, allowing users to work the room without the hassle and restriction of cables for a fantastically low price. The package includes a ULM300L Lavalier Microphone, a ULM300BP Belt-pack transmitter, and the ULM300RL single-channel wireless receiver.The custom-designed microphone capsule and transmitter are designed to offer high-quality sound optimized for speech. Interference-Free Performance Our state-of-the-art transmitter operates in the 2.4 GHz frequency band, which is well out of the way of TV stations and cell phone towers. And since it is digitally encrypted, your signal gets through in all its pristine, high-definition quality without the random artifacts that often plague other wireless systems. The ULM300RL Single-channel Receiver tracks your every move, with a range of up to 100 feet (30 m) SPECIFICATIONS: MICROPHONE PATTERN               Cardioid RF OUTPUT         < 18 dBm (64 mW)  OPERATING RANGE        approx. 30 m (100 feet) with direct line-of-sight* DYNAMIC RANGE            95 dB A-weighted** EQUIVALENT INPUT NOISE          -105 dBV unweighted @ 12 dB gain, 600 Ω FREQUENCY RESPONSE 100 Hz – 15 kHz, 0/-3 dB SAMPLING RATE               48 kHz RESOLUTION      24-bit  ENCODING         Uncompressed LATENCY              14 ms RF FREQUENCY 2.4 GHz ISM band (2408.5-2475.5 MHz, 16 channels) BATTERY TYPE   2 x AA BATTERY LIFE     Minimum 4 hours*** POWER External adaptor              5 V DC, 1000 mA, center-negative  POWER CONSUMPTION               1 W  DIMENSIONS (H x W x D) ULM300BP       33 x 63 x 83 mm DIMENSIONS  ULM300RL              41 x 150 x 119 mm  WEIGHT ULM300BP        0.08 kg  WEIGHT ULM300RL         0.24 kg *Achievable range will be dependent on nearby sources of RF interference and/or line-of-sight obstacles **Measured from analog input to analog output, unity gain operation without wireless compression ***Depending on battery type and use pattern