package:<br />1 x original xiaomi mi band 2 smartband<br />1 x original strap<br />1 x charger <br />1 x manual<br /><br />features:<br />0.42 inch oled display screen with touchpad    <br />support optical heart rate  monitor， adi ultra-low power acceleration sensors<br />passometer，fitness tracker，sleep tracker，message reminder，call reminder    <br />water resistant (ip67)    <br />20- standby power    <br />sleep-cycle smart alarm    <br />with a dialog ii 4.0 bluetooth chip， adi sensor    <br />running miui android 4.4 and above versions; for iphone 4s/5/5s/6/plus ios 7.0 and above    <br />unlock your mi phone without a password    <br />stylish band options (incl. wrap-around and leather)<br /><br />description:<br />model: miband 2<br />weight: 7g<br />meterial: plastic， aluminum<br /><br />battery: <br />70mah<br />standby time:20 s type batteries<br />input current:45ma (typ)， 65ma (max)<br />input voltage:5v<br /><br />compatible requirements: <br />android 4.4 + &amp;amp;amp;amp;amp; support bluetooth 4.0 : for android devices<br />ios 7 - for  devices : iphone 4s / 5 / 5c / 5s / 6 / 6 plus 6s 6s plus<br />xiaomi (miui 6 and above): mi2/2s/2a， mi3， mi4， mi note， mi4c， redmi 1s， redmi 2/2a， redmi note， redmi note2， note3 ， xiaomi mi5 4s  xiaomi max<br />phone with android version 5.0 above<br /><br />wristband:<br />wrist strap length:235 mm<br />adjustable wrist strap length: 155mm ~ 210mm <br />material:thermoplastic elastomers， aluminum