Earldom MC3i Wireless ...

Types: IPHONE
Frequency: 2.4GHz.
Input: DC 4.8V – 5.4V.
Battery capacity: 80mAh.
Connection distance: 8m (when there is an obstacle), 20m (when there is no obstacle).
Recording device that supports voice recording, livestream, video recording, to your phone.
Support air filter to help remove some noise from the environment for the best recording quality.
With a battery capacity of up to 80mAh, you can use it for a long time.
Maximum connection distance when recording is up to 20m in ideal conditions without obstructions
Compact, delicate and fashionable design easily attaches to the collar.