Compatible with Motorola MOTOTRBO R7, MXP600, ION Series Also compatible with APX N70 N50 N30 (Please be aware that XPR3000, XPR7000 and APX Series are not compatible) Our heavy-duty doesn’t stop at Kevlar jacket! All corners wrap with protection/strain hub. Superior Poly-Urethane acoustic tube providing high elasticity and softness. Measured Length from Connector - Earphone: 135cm (53 in), Stretch Comfortably to 144cm (57 in) This 2-Wire Acoustic Ear Tube Surveillance Kit provides clear voice transmission and excellent focused sound quality. It has extra length, flexible, and durable Kevlar cable with PU transparent acoustic tube. It is a unique product that fits for public safety and special force.