I have got this for a Christmas gift for a friend. It seems well made and the online reviews for it were very good. From the reviews it seems model 3 is the one to get because the battery lasts almost a year and the sound is very loud.
Description: Often forget or can't find phone, keys, wallet or something important? Now, the upgrades version Nut 3 will help you solve this problem. Just need to press one key to find your property, very easy operation. The new version with lower power consumption, long lifespan, and higher decibel to alarm you. This little bud is the best partner for you daily life!
Main Features: Compatible with iOS 7 and above, Android 4.3 and above Super mini size and lightweight design, very convenient to carry Smart anti-lost, find your phone immediately Support one key find, call the nut on the phone, very easy operation With lost and find network, you can ask the other nut users to help you find your property Share use function allows connecting with several smartphones Sand dune appearance looks elegant Compared with Nut 1 and Nut 2, this new version is about one year standby time, and up to 90dB alarm sound, double way anti-lost
Specifications: Bluetooth Version: V4.0 Standby Time: 12 months Working Time: 6 - 8 months Alarm Decibel: 90dB, increases 50 percent
Model: Nut 3
Main Panel Specifications
Working Time: 6 - 8 months Standby time: 12 months
Dimension and Weight
Product weight: 0.010 kg Package weight: 0.080 kg Product size (L x W x H): 3.82 x 3.82 x 0.72 cm / 1.5 x 1.5 x 0.28 inches Package size (L x W x H): 15.50 x 9.50 x 1.80 cm / 6.1 x 3.74 x 0.71 inches