My father - Wireless multi-directional microphone BY-WM6S

• For the mobile journalist, video blogger, filmmaker, and videographer• Compatible with smartphone, tablet, DSLR camera, camcorder, and audio recorder• Provides clear sound and broadcast quality for recording• UHF transmission with 48 channels• Omnidirectional microphone included• Easy-to-read LCD screens• USB Type-C ports for charging the battery• Durable all-metal construction• Operating range up to 70 meters (230 feet) (line of sight)• Mute function• 3.5mm headphone output The BOYA BY-WM6S is a new generation of UHF wireless microphone system, compatible with smartphone, tablet, DSLR camera, camcorder, audio recorder, and more. With low interference capability and UHF transmission with true diversity reception, it helps users avoid many types of issues, even in challenging filming conditions, providing broadcast-quality sound and audio integration. It operates on built-in rechargeable batteries or is powered via Type-C DC 5V. This system is designed with a compact and sturdy body and a detachable antenna that can be easily carried into indoor and outdoor environments. Features: Channel number: 48 Oscillator type: PLL synthesizer Carrier frequencies: 556.710-575.980 MHz Reference deviation: +/- 5 kHz (-60 dB, 1 kHz input) Signal-to-noise ratio: 82 dB or more Wireless output power: 10 mW Distortion: 0.1% or less Antenna: 1/4 wave antenna Headphone output level: 30 mW (16 ohms) Receiving sensitivity: -98 dBm Frequency re-tuning: 40 Hz to 18 kHz (+/- 3 dB) Reference audio input level: -60 dBV (MIC input, 0 dB attenuation) Power requirements: Built-in 1600mAh lithium-ion battery, DC 5V (USB Type-C) Dimensions: 60 × 24 × 90 mm (2.4 × 0.9 × 3.5 inches) Weight: 149 grams (5.3 ounces)