Ocean Reef M101A G.Divers Underwater Receiving Unit Dive Bag Rapid Adjustment Knob: Manual Second

Rapid Adjustment Knob: Manual Second Stage De-Tuning in Rare Special Situations

Atomic Sub-Frame Anti-Reflective Coating Mask

reduce hand fatigue and increase flexibility

Depth gauge is color-coded for easy and safe reading at a glance

Ocean Reef M101A G.Divers Underwater Receiving Unit Dive Bag Rapid Adjustment Knob: Manual SecondOverview The M101A G. divers is a receive only unit operating on one channel. The M101A fits on any conventional mask strap or full face mask models. It might be held and shared by more divers thanks to the high quality speaker. The M101A uses a 9V alkaline battery and has a low battery alarm which beeps every 30 seconds when the battery is low. Videos