High-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. 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. Woring for 8 hours maximum. Quick Start:after fully , "" to turn on the GPS positioner. 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. 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. Sleep Mode:in order to save the battery power,long "" to turn off GPS positioner. Return Mode: "" to turn on GPS positioner,select reset point,display the direction and distance to the reset point. Refresh rate: 1 Storage capacity: 512KB Memory:4MB (user memory 300 kbye) Accuracy of positioning: 5-15m Battery: Built-in lithium-ion battery Working Time:about 10 hours Screen size: 1.4inch Dimensions: 65 x 53 x 21mm Color: A Green Material: ABS Package Contents: 1 * Handheld GPS Only the above package content, other products are not included. 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.