First, this version remote has a power button so you can lock the buttons when it is not in use or you are concerned about accidental corrections.
Second, the remote has the built-in antenna(about 1" in length) is lightweight and rechargeable with lanyard and belt-clip for easy carrying.
Third, the large buttons are easy to access and won't get stuck.
The last, not the least, the receivers deliver more controllable corrections. If the button is pushed once, the receiver will vibrate or shock once, not three or four times in a row. The intensity of the low level(L1 or L2) is only half of the high level(H1,H2). The low shock is for small dogs or sensitive dogs while the high level with noticeably more powerful jolt for a large dog or more headstrong/insensitive dogs. Similar products from competitors deliver long and unnecessary vibration or shock(their shock has the same strong level regardless of low or high level).
This training collar system has the most intuitive operation and simplest button layout for fast access and instant control of your dog's unwanted behaviors such as excessive or aggressive barking,digging,chewing,biting,jumping on people or chasing cars or for obedience training. This collar has 3 vibration command buttons:V1 for dog 1, V2 for dog 2 and V for both dogs. This two vibration setting can serve different training purposes. For example,V1,V2 serve as warning before shock and V as attention call for two dogs .This sale includes:1. One rechargeable remote w/lanyard and belt-clip ;
2. two water-resistant(not waterproof) rechargeable receivers w/ adjustable straps (6"-25"/15-65cm);
3. Wall charger with dual USB charging cable;
4. Metal prongs,Shock test light;
5. Manual;
6. Six month free replacement warranty from seller.