Package Include 2 x tracking Characteristics - The hanging rope can help you suspend the wherever you want, easy to use and be applied in daily life. - 3 kinds of sound effects: default, electronic, clear. Small body, simple and lightweight, with a lanyard, easy to carry. - Material: ABS, iron, electronic - Volume: 80- 100dB - Color: White - Rated current: 3.3mA - Power supply: CR203 button battery 240mAh - Size: 3.70X2.50X0.60cm/ 1.45X0.98X0.24in - Communication distance: 30m ( open space ), 10m ( normal indoor environment ) - Rated power: 10mW - Rated voltage: 3V - The sound is easy to go through cushions and doors to help you find the lost item, saving time and energy. - Long- term battery life of about 365 days, breakpoint memory, record lost location, APP positioning search. - Easy and quickly locate, just press the button and follow the beeps to find the key, backpack, luggage, wallet, etc. Goods Information Running late and can’t find your keys? Stop wasting precious time with the our key tracking finder! With the push of a button, you can find your keys and get out the door in no time! This key finder is made of ABS and iron material, with precise electronic, which has high durability, not easy to deform, durable in use.