BOYA BY-WM4 PRO-K6 2.4G Wireless Microphone System (Transmitter * 2 + Receiver * 1) 60M Effective Range Compatible with Android Smartphones with Type-C Interface

Features:
Digital wireless microphone system(two transmitters + one receiver), ideal for vloggings, podcasts, live streaming, mobile journalism and more.
Adopts 2.4G wireless technology, with strong anti-interference ability and high performance; up to 60m(197ft) operation range(without obstacle).
Omnidirectional lavalier microphone for clear sound recording; backside clip design allows you to mount the transmitter to belt or pocket easily.
The Type-C receiver with 3.5mm earphone interface, supports real-time audio monitoring to ensure clear recording and keep the microphone work properly.
Lightweight and compact size, can be placed into your backpack, very convenient to carry around during traveling.

Specifications:
RF Modulation: GFSK (Gauss Frequency Shift Keying)
Frequency band: 2.4G (2405-2478MHz)
Frequency response: 35Hz-14KHz±3dB
Signal/Noise: 84dB or more
Distortion: 0.05% or less (32ohm, 1 KHz, 65 mW output)
FR output level: 3mW
Earphone output level: 32hom, 65mW
Reception sensitivity: -90dB+/- 3dB / 0dB=1V/Pa, 1KHz
Audio input connector: 3.5mm mini jack
Operation range: 60m (197 ft)(without obstacle)
Transmitter Power requirement: 2 * AAA battery(not included)
Consumption power: Transmitter: 3V/70mA
Receiver: 3V/70mA
Transmitter Size: 4.5 * 7 * 3.5cm/ 1.8 * 2.8 * 1.4in
Transmitter Weight: 47g/ 1.7oz(without battery)
Receiver Weight: 9.5g/ 0.3oz

Note:
The smartphones, phone holder and tripod showed in the picture are not included.