*2 Year Saramonic Warranty **Must Keep Packaging Box with Serial Number for Warranty Claim Purpose, T&C Applies. B2 Model In the box: 2 x Blink 500 TX Transmitter with Built-In Microphone and Clip 1 x Blink 500 RX Receiver with Built-In Clip and Camera Shoe-Mount 2 x SR-M1 Omnidirectional Lavalier Microphone 2 x Alligator-Style Lavalier Microphone Clip 2 x Foam Lavalier Windscreen 1 x 1 (30.5 cm) Gold-Plated 3.5mm TRS to TRS Output Cable for Cameras 1 x 1 (30.5 cm) Gold-Plated 3.5mm TRRS to TRRS Output Cable for Smartphones and Tablets 3 x 1 (30.5 cm) Gold-Plated USB-C to USB-A Charging Cables 1 x Pairing Pin For Journalists, Vloggers, YouTubers 2 x Omni Lav Mics & Built-In Omni Mics 2 x Ultracompact Clip-On Transmitters Ultracompact Dual-Channel Receiver Connects to 3.5mm Input on Camera Easy to Use, Plug & Play Operation Adjustable Gain via Simple Buttons USB-Rechargeable 5-Hour Batteries 3.5mm Cables for Camera & Mobile Device 18 Systems at Once Max, up to 164' Range B1 (1 Transmitters +1 3.5mm Receiver) B2 (2 Transmitters +1 3.5mm Receiver) B3 (1 Transmitters +1 Lightning Receiver) (not compatible with phone has 3.5mm jack) B4 (2 Transmitters +1 Lightning Receiver) (not compatible with phone has 3.5mm jack) B5 (1 Transmitters +1 Type C Receiver) (not compatible with phone has 3.5mm jack) B6 (2 Transmitters +1 Type C Receiver) (not compatible with phone has 3.5mm jack)