LED Whistle Keychain

Model: AN-139

Name: LED Whistle Keychain
Switch Mode: Button
Battery: AG10*3

Customization: LOGO

Material: ABS
Size: Φ25mm

Features: 1.It can be a good promotion gift 2.Work with keyring 3.Whistle sound will make it to beep 4.Electronic key finder helps you to find your lost keys.
Application: Attach this electronic key finder to your keys.When you lose your key in your dawer,cupboard etc.You can just whistle then it sounds and flashes to help you to find your keys. One high light led helps you to find your way in the dark. All you need to do is clap,whistle or shout.Any loud noise over 1000-1200hz causes the promotion gift to beep and the light to flash. also handy for finding keyholes.
http://www.flashing-gift.com/LED_Gift_Toy/LED_Keychain/AN-139.html