HOTDIVE Frenzel Equalization Trainer Tool HDF-01
$22.00
Features:
1. Aluminum material, sturdy and easy to clean and disinfect.
2. 2 pieces with Oring structure, most precisely adjustable EQ trainer ever make.
3. Different color can be chose, fashion design.
4. Compatible with most balloon on the market, can be used without a balloon.
Description
HOTDIVE EQ Trainer
HOTDIVE EQ Trainer can train your equalization wherever you want. Suitable for all level free divers. It can help you train Frenzel, mouthfill, and reverse packing technique. Two pieces metal with O-ring structure can change the airflow easily and precisely. It even simulate mouthfill or Deep Frenzel with mouth air decrease automatically. Other EQ trainer are very hard to achieve that. Get deeper techniques training even wherever you are.
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