Tougher. Easier. Clearer. the RB48A is engineered to survive in the real world, Equipped with noise reduction and powerful audio processing the RB48A delivers great audio in noisy conditions. oversized front PTT for easy blind operation, All-day usage up to 23 hours (90% Standby / 5% Talk / 5% Listen). RB48A also has the maximum allowable FRS which can offer coverage across up to 300,000 sq. ft. or a 25-story building or 0.5-2 miles. which is ideal for construction, jobsite, warehouse, Manufacturing Feature: FRS 16 channel, IP67 Waterproof, Rugged & Shockproof, Floating, 23 Hour battery, Noise reduction, Oversized front PTT, Maximum power by FRS, TOT, VOX, Emergency alarm, Side button lock, Power save mode Package List: 10X RB48A heavy duty walkie talkies; 10X 2000mAh battery; 10X back clip; 10X lanyard; 5X charging dock; 5X USB-C charging cable; 5X instruction manual; 1X antenna ID rings; 10X earpiece