Description: 100% brand new and high quality The device is based on the technology of electronic bearing sensor and barometric sensor. The digital altimeter is designed for outdoor use, the detachable string makes the digital a perfect hand-carry device for various outdoor activates it will give you backlight when you press any button in any time. Features: 8 in 1 Function: Digital altimeter, with digital barometer, digital , weather forecast, time, calendar, thermometer, and backlight. The device is based on the technology of electronic bearing sensor and barometric sensor. The digital altimeter is designed for outdoor use, the detachable string makes the digital a perfect hand-carry device for various outdoor activates. It will give you backlight when you press any button in any time. Forecast the weather for the forthcoming 12 to 24 hours basing on barometric pressure changes. Specification: Altimeter: -700 ~ 9000m / -2300 ~ 29500ft Weather forecast Resolution: 0.1mbar, 0.1oC History Altitude : 256pcs records : show bearing in degrees and cardinal point Thermometer : In C / F format Clock: In 12 hours or 24 Hours format Battery: by 2 x AAA batteries ( Included) Size:app.9.1x5.2x1.8cm/3.6x2.0x0.7in Color: Black Quantity:1 Pc Package includes: 1 x 8 in 1 digital altimeter 1 x Lanyard Shipping 1.If you need to buy in bulk, please contact, we will reply in 24 hours. 2.We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. 3.Usually product Reaches after about 12-45 business days depending on destination. If you have not received your shipment within 45 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Refund or resend product will be offered if item still not received. 4.We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We ask you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them! THANK YOU :)