funme mini handheld fan small personal portable table fan usb desk fan with 2600mah usb rechargeable battery operated cooling folding electric fan for travel office room household black easyacc <b>mini handheld fan, sprinkle your life with more fun</b><br /> <br /> <b>note before using: </b><br /> 1. please remove the white insulator under the battery cover and place the battery correctly (match up the flat side of the battery with the spring) before using, or the fan can't hold a charge or would only work when plug-in.<br /> 2. recharge the fan when it cannot adjust speed or cannot be turned off.<br /> 3. the battery is different from aa or aaa battery, if you want to replace the battery, please find flat top unprotected 18650 rechargeable battery on amazon.<br /> <br /> <b>specifications</b><br /> color: black<br /> weight: 176 gram / 6.2 ounce (battery included)<br /> size: 103 x 60 x 110mm / 4.06 x 2.36 x 4.33 inch<br /> battery type: rechargeable li-ion battery 2600mah<br /> output power: 4w ; input current: 5v / 0.5a<br /> charging time: 4.5 hours ; working time: 3-10 hours<br /> speed level: 3<br /> <br /> <b>package content:</b><br /> 1 × mini fan<br /> 1 × 1.2m usb cable<br /> 1 × 18650 rechargeable battery<br /> 1 × instruction (english)