Sound Control Key Chain With LED

Are you still having trouble finding your keys? Professional production of intelligent sound control key chain, to help you solve the problem! In order to make it more convenient for the elderly and children, we specially configured a whistle.You only need to hang the whistle finder and the key together, open the switch on the back, whistling is issued by 'didi', can find the key at any time. Effective range: generally 8 to 10 meters or so, depending on the size of the individual whistling sound, the greater the whistling sound, the farther the distance.Your logo can be imprinted.Price includes shiping cost.