22 preset channels with privacy codes for minimizing unwanted signals from others; Waterproof and dustproof (IP67) ; VOX allows for hands-free usage, automatically transmitting when user speaks ; Shock-resistant–can withstand 6.5 ft. drop; Bundle includes 6 radios, 6 headsets, 6 Li-Poly rechargeable batteries, 6 holsters, 3 dual charging bases, 3 micro USB cables, and 3 wall adapters;