Saramonic Blink500 Pro B2 featured with Ultracompact 2.4 GHz Wireless microphone kit, Additional Transmitted can be added, 2 x Transmitter with Lavalier Mic, Internal 8-Hour Batteries, Charging Case, 18 Systems at Once Max, up to 328′ Range and 100 Meter Operating Range. The Blink 500 Pro B2 mic System delivers considerably improved sound quality compared to the built-in mics on cameras and mobile devices, but it elevates the sound quality of the original Blink 500 with its higher signal-to-noise ratio and more sensitive integrated microphone. In this Mic System, the Pro transmitter now sports a tactile function for immediate mute/unmute operations without having to touch the volume and also the receiver boasts separate line and headphone outputs to allow real-time audio monitoring without breaking the connection. This Blink 500 Pro systems offer considerably improved fidelity and clarity with less noise. Here, the Internal 8-hour lithium-ion batteries help you to keep on extra long shoots