Truglo TG231MP Tritium Handgun Day/Night Sights Smith & Wesson Multicoated The system also includes 4

The system also includes 4 headset and 4 lavalier microphones

Frequency Response: 65 Hz - 20 KHz

Gain Adjust: 200Mv-8V

Built-in Stereo Speaker

3 Piece Aluminum Ramrod

Truglo TG231MP Tritium Handgun Day/Night Sights Smith & Wesson Multicoated The system also includes 4Tritium Handgun Day Night Sights Smith &Amp; Wesson For: Smith &Amp; Wesson M&Amp; P (Including Shield &Amp; . 22 Models, Excluding . 22 Compact C. O. R. E. Models), Sd9 And Sd40 (Excluding Ve Models) When The Lights Go Out, Your Sidearm DoesnT Need To Be Left In The Dark. Tritium Night Sights Transition From Standard White Dot Sights During The Daylight, To Glowing Green Dots In The Dark. Tritium Does Not Need Batteries And Does Not Need To Be