Feature:<br /><br />    Build-in rechargeable battery・2-4rs for full charging・about 2 weeks service time on a full charge(as the case may be).<br /><br />    The mouse will enter into deep sleep mode after left unused for 15min and will start again by simple move.<br /><br />    3 DPI  800 1200 1600 adjustable levels to suit both ordinary and gaming needs.<br /><br />    Frosted surface treament to avoid fingerprints left and stain resistant・ultra slim and lightweight design・space-saving and portable.<br /><br />    Bluetooth3.0 works with Win8・8.1・10・ Android and Mac OS.<br /><br />    Specifications:<br /><br />    Wireless technology: Bluetooth3.0<br /><br />    Battery capacity: 250MAH<br /><br />    Working mode: Optical Mouse<br /><br />    Wireless distance: 10m<br /><br />    Key number: 3<br /><br />    Net/Gross weight: 56g/112g<br /><br />    Ergonomics: Yes<br /><br />    How to connect to a bluetooth device:<br /><br />    Mouse's power switch on・ open bluetooth connection interface of device (cellphone・ computer).<br /><br />    The device enter bluetooth mouse searching mode.<br /><br />    Long press bluetooth pairing key at the bottom of the mouse till blue light inside mouse flashing・ release the pairing key.<br /><br />    "Bluetooth mouse" waiting for connecting status shown on your device.<br /><br />    Click to confirm connect on your device・ bluetooth connection completed・ the mouse be ready to use.<br /><br />