Main Function: 1. Landline connection (GSM optional) 2. Dual-talk mode and single-talk mode switch freely 3. System with a speaker and a button that can press to talk, instead of having to pi...
Main Function: 1. Landline connection (GSM optional) 2. Dual-talk mode and single-talk mode switch freely 3. System with a speaker and a button that can press to talk, instead of having to pi...
Main Function: 1. GSM model 2. Handfree ask help 3. Special picture design button that make user easy to remember and operate 4. Ask for help automatically,connect alarm phone call first...
1. GSM model 2. Handfree ask help 3. Special picture design button that make user easy to remember and operate 4. Ask for help automatically,connect alarm phone c...