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Detachable Long and Short Massage Hammer
- Switch between an extended curved body for back reach and a short body for direct handling. The JA-G4D offers five intensity levels, four interchangeable massage heads and a rechargeable brushless-motor design for everyday muscle-care routines.
Exquisite Details & Design Features
Carefully-crafted details showcase superior craftsmanship and outstanding design features.

Two Configurations for Everyday Muscle Care
The long curved body helps position the massage head on hard-to-reach back muscles.
Uncover Our Core Product Advantages
Reliable quality and solid performance for your varied usage scenarios. Rigorous production standards ensure great durability and cost‑efficiency.

The curved extended body provides reach for independent massage of back muscle areas.

The short body takes up less length when you organize your personal-care essentials.

A compact direct grip makes it easier to position the ball head on accessible muscles.

USB Type-C charging uses a DC 5 V, 2 A input, with approximately three hours to recharge.
Compatible devices
USB Type-C Power Input
Use a DC 5 V, 2 A charging supply through the USB Type-C port.

Product parameters
Flexible for multiple scenarios
The detachable body and rechargeable design support personal care at home and away.

The curved extended body provides reach for independent massage of back muscle areas.


The short body takes up less length when you organize your personal-care essentials.

Packaging list
JA-G4D body set x 1; interchangeable massage heads x 4; retail box x 1.
Frequently Asked Questions
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