Zello DD7 Buttons
The DD7 is a small, wireless PTT switch which works wirelessly with ZELLO push-to-talk . It can be held in the hand, attached to the key rings, or mounted on flat surfaces using double sided tape. The Ring can be worn on your finger or around your neck and has an adjustable strap. No charging required. Lasts up to 2 years on easy-to-change CR2032 coin cell battery (included).
Use with iPhone. Use with most Android. running LTE/PTT APP