Feature:* Wireless receiving heartbeat signal transmitted from heartbeat brooch, chest band frequency is AM5.3HKz* Time display: hour, minute, second* Alarm clock function* Give alarm when heart rate exceeds the upper and lower limit values(60-220)* Timing( maximum time-keeping is 23 hours, 59minutes, 59seconds,99)* 12/24 hour displaying format* EL back light* Keystroke toneSpecification:* Case material: stainless steel* Watchband material: rubber* Case diameter: about 4.2cm* Watchband width: about 2.1cm* The heart rate chest belt and watch have a maximum transmission range of about 100centimetersPackage include:* Heart rate watch x 1* Chest band x 1* Manual x 1
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