Lightweight Bluetooth earphone for two-way radios and cell phones,

Retevis RB89 original bluetooth headset, also fit for Retevis RB37, RA19 etc.

*Dual PTT design: touch PTT and side key PTT

*Support VOX function for releasing hands.

*Support Zello App.

*Support connected to two-way radio and phone at the same time.

*Fast paring within 3 seconds.

*Up to 12 hours’working time.