Features: 
Wireless receiving heartbeat signal transmitted from heartbeat brooch, chest band frequency is AM5.3KHz;
Time display: hours; minute; second;
Alarm clock function;
Give alarm shen heart rate exceeds the upper and lower limit values (60-220);
Timing (maximum time-keeping is 23 hours, 59 minutes, 59 seconds, 99);
12/24 hour display format;
EL backlight;
Keystoke tone
Waterproof: 50m Waterproof (please not press watch button under water.)

Package Inlcuded (no watch box):
1 Watch
1 Chest Strap
1 English Instruction