Outdoor compass for hiking with altitude measurement and GPS trackingHigh-precision satellite mini handheld GPS coordinates compass altitude locator navigator outdoor sports travel hiking . 100% Mini shape, just like a watch. Provide the direction and distance to the destination. Destination point can be set, maximum 16 points. Record the distance you travelled, and the time you spent.<br> Provide current position: longitude, , and altitude information. Speed measurement. Display accurate time synchronized by satellite. With an extremely long waiting time. With back-lit display. Ideal for Drift/Camping/Hiking/Climbing.<br> Woring for 8 hours maximum. Quick Start:after fully , "■" to turn on the GPS positioner.<br> Satellite Search:turn on the GPS positioner and wait for the satellite search to be completed in an open place,the LED screen shall at least two signals.<br> Reset Point:select the reset point (target position) to be returned, any two keys "■+▲" or "■+▼" to save at the same time,and the GPS positioner automatically save the date and time on the screen.<br> Sleep Mode:in order to save the battery power,long "■" to turn off GPS positioner.<br> Return Mode: "■" to turn on GPS positioner,select reset point,display the direction and distance to the reset point.<br> Refresh rate: 1<br> Storage capacity: 512KB<br> Memory:4MB (user memory 300 kbye)<br> Accuracy of positioning: 5-15m<br> Battery: Built-in lithium-ion battery<br> Working Time:about 10 hours<br> Screen size: 1.4inch<br> Dimensions: 65 x 53 x 21mm<br> Color: A Green<br> Material: ABS<br> Package Contents:<br> 1 * Handheld GPS<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.