Product Name: chest strap heart rate<br />Shell Material: ABS plastic<br />Strap Material: PU rubber<br />Back / table back Material: Stainless Steel<br />Chest strap Material: ABS plastic + PU + elastic rubber band<br />Built-in Battery: Japanese lithium battery model: CR2032<br />Accessories: Color box + instructions in English<br /><br />Table size: about 24x4.3x1.5CM Weight: about 60g<br />Chest band size (plastic part): about 32x3.7x1CM Weight: about 80g<br />Waterproof: 3ATM waterproof watch (can be water, not water operations), chest strap 1ATM waterproof (life waterproof not water)<br />Features<br />Wireless heart rate chest belt conveyor receiving heartbeats, chest band frequency AM 5.3KHz;<br />Time display: hours, minutes, seconds.<br />Alarm function<br />Heart rate exceeds the upper limit alarm function (60 to 220) {} can set your own<br />Timing function (23 hours maximum timing 59 minutes 59 seconds 99)<br />12/24 hour clock<br />EL backlight<br />There are key tone<br /><br />Package Includes:<br />Watch * 1<br />Heart rate zone * 1<br />Instructions * 1<br /><img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_1.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_2.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_3.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_4.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_5.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_6.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_7.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_8.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_9.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/802/409/620409802/img/agdetail.image-gmkt.com/802/409/620409802/img/img6.eachbuyer.com/x9/p100/eb04675_10.jpg" />