Feature: 1. Adjustable nylon wrist band with O-ring strap, according your need to be adjusted. 2. With display screen, can show time and date. 3. LED wrist light, good brightness, energy saving, eco-friendly, long service time. 4. Built-in li-on battery, support USB charging, convenient to use. 5. Suitable for camping, mountain climbing, hunting, cave exploring, night riding, sports and outdoor activities. Specification: Item type: LED Wrist Light Lamp chip: XPE Luminous flux: 100 -240lm Irradiation distance: about 50 meters - 100 meters Material: ABS plastic Mode: four modes Continuous lighting time: about 2 - 3.5 hours Time: about 100,000 hours Waterproof: yes Charging: Yes Color: black Light size: Approx. 6x5.5x2 cm/2.4x2.2x0.8in Wrist strap size(length x width): Approx. 22x2.4 cm/8.7x0.9in Battery: Built-in lithium battery Weigth: Approx. 112g @font-face{ font-family:"Times New Roman"; } @font-face{ font-family:"宋体"; } @font-face{ font-family:"Calibri"; } @font-face{ font-family:"微软雅黑"; } p.MsoNormal{ mso-style-name:正文; mso-style-parent:""; margin:0pt; margin-bottom:.0001pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; font-family:Calibri; mso-fareast-font-family:宋体; mso-bidi-font-family:'Times New Roman'; font-size:10.5000pt; mso-font-kerning:1.0000pt; } span.msoIns{ mso-style-name:""; text-decoration:underline; text-underline:single; color:blue; } span.msoDel{ mso-style-name:""; text-decoration:line-through; color:red; } @page{mso-page-border-surround-header:no; mso-page-border-surround-footer:no;}@page Section0{ } div.Section0{page:Section0;}Direction: Press right button on show time Press the bottom right twice to display the date Left click on the strong light time on the display (maximun 2 - 3.5 hours)Press twice under the left button to display low light and low light time (maximun 9 hours) Left by three - turn off the power Long press button simultaneously displays SOS distress signal Right-click to adjust the time, long-click to adjust the time, adjust it once, then right-click to adjust the flash, and so on.Long press left button to display the flashing flash. Package List: 1 x LED watch1 x Micro USB cable1 x Instruction