---
product_id: 486776032
title: "MasterUnion PecBuilder EMS Chest Trainer for Men,EMS Muscle Stimulator, USB Stomach Muscle Toner,Portable Fitness Workout Equipment for Men Woman Abdomen/arm/leg Home Office Exercise-2pcs"
brand: "masterunion"
price: "€ 59.44"
currency: EUR
in_stock: true
reviews_count: 8
category: "Master Union"
url: https://www.desertcart.it/products/486776032-masterunion-pecbuilder-ems-chest-trainer-for-men-ems-muscle-stimulator
store_origin: IT
region: Italy
---

# 8-hour continuous EMS power 0.5-hour fast USB charging Ultra-thin, wearable design MasterUnion PecBuilder EMS Chest Trainer for Men,EMS Muscle Stimulator, USB Stomach Muscle Toner,Portable Fitness Workout Equipment for Men Woman Abdomen/arm/leg Home Office Exercise-2pcs

**Brand:** masterunion
**Price:** € 59.44
**Availability:** ✅ In Stock

## Summary

> ⚡ Charge up your muscles, not your schedule!

## Quick Answers

- **What is this?** MasterUnion PecBuilder EMS Chest Trainer for Men,EMS Muscle Stimulator, USB Stomach Muscle Toner,Portable Fitness Workout Equipment for Men Woman Abdomen/arm/leg Home Office Exercise-2pcs by masterunion
- **How much does it cost?** € 59.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/486776032-masterunion-pecbuilder-ems-chest-trainer-for-men-ems-muscle-stimulator)

## Best For

- masterunion enthusiasts

## Why This Product

- Trusted masterunion brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Body Versatility:** Designed for men and women, perfect for multiple body zones including chest, arms, neck, and legs.
- • **Power-Packed Portability:** Ultra-light and discreet—wear it under clothes during work, leisure, or travel without missing a beat.
- • **Effortless Muscle Sculpting:** Target chest, arms, abs & legs with EMS tech for a toned look anytime, anywhere.
- • **Customizable Intensity Modes:** Adjust intensity and programs easily to match your fitness level and daily routine.
- • **Rapid Recharge, Long-Lasting:** Half-hour USB charge fuels 8 hours of uninterrupted muscle stimulation—no downtime, just gains.

## Overview

The MasterUnion PecBuilder EMS Chest Trainer is a sleek, USB-rechargeable muscle stimulator designed for men and women to tone chest, arms, abs, and legs. With 8 hours of continuous use after a quick 30-minute charge, its ultra-thin, wearable design fits seamlessly under clothing, enabling discreet muscle training during daily activities. Featuring adjustable intensity and multiple modes, it promotes blood circulation and lymphatic drainage, making it a versatile fitness companion for home or office.

## Description

Product description How to Use: - Place Massager on Desired Body Part. then Press the Program Button to Change to a Mode You Like. - Set the Intensity to Your Preference, Press the Inc Button to Increase Intensity and Press the Dec Button to Decrease Intensity. - Use for 15 Minutes Everyday for 10 Days or More. Package Includes: 2 Sets X Pecbuilder Ems Chest Trainer for Men Directions Place Massager on Desired Body Part. then Press the Program Button to Change to a Mode You Like. - Set the Intensity to Your Preference, Press the Inc Button to Increase Intensity and Press the Dec Button to Decrease Intensity. - Use for 15 Minutes Everyday for 10 Days or More. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning [General safety warnings apply, such as avoiding use near water and stopping if pain occurs.] See more

Review: Avoid !! - This product worked fine for 2 days . First one broke down followed by the other . Seller only offered a refund of £3.75 ! When challenged, they replied that a full refund would only be issued on me returning the item ( at my expense) to an obscure address in China - and only then after an inspection/test ! Not good enough. They finally offered 50% refund only after I insisted ( and only then to cut my losses). Avoid this seller at all costs .
Review: Not Able to Use at ALL! - Definately Did Not Like the Fact That NO Connection Hole Socket! Badly Made!

## Features

- PecBuilder EMS Chest Trainer for Men--- Elimination of Flabby Arms and Chest Fats, Great for Lymphatic Drainage Promoting Blood Circulation and More.
- Usb Charging --- It Can Be Used Continuously for 8 Hours After Charging for 0.5 Hours. Usb Charging Can Provide More Stable Power Supply with Longer Service Life.
- Flexible and portable --- EMS muscle trainer is ultra-light, ultra-thin, wearable, and easy to carry. ABS muscle trainers can be worn unobtrusively under your clothes. It is very suitable for muscle training during reading, watching movies, doing housework, and even during business or leisure.
- Usb Charging---PecBuilder EMS Chest Trainer Can Be Used Continuously for 8 Hours After Charging for 0.5 Hours. Usb Charging Can Provide More Stable Power Supply with Longer Service Life.
- Widely Applicable---The Massage Pad Can Also Be Widely Applied To Different Body Parts, Such As Arms, Breast, Neck, Shoulders, And Legs. Suitable For Everyone.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BGSQJPTV |
| Best Sellers Rank | 165,217 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 267 in Fitness Electric Stimulators |
| Brand | MasterUnion |
| Color | 2pcs |
| Customer Reviews | 2.8 2.8 out of 5 stars (30) |
| Date First Available | 29 Sept. 2022 |
| Features | Portable |
| Item model number | PecBuilder EMS Chest Trainer for Men |
| Manufacturer | LYDEW |
| Material type | Plastic |
| Power source | Corded Electric |
| Style | Modern |

## Product Details

- **Brand:** MasterUnion
- **Colour:** 2pcs
- **Is cordless?:** Yes
- **Massager form:** Massage Wand
- **Material:** Plastic
- **Model name:** PecBuilder EMS Chest Trainer for Men
- **Power source:** Corded Electric
- **Product benefits:** Muscle Toning, Portability, Blood Circulation Promotion, Lymphatic Drainage
- **Special feature:** Portable
- **Use for:** Stomach

## Images

![MasterUnion PecBuilder EMS Chest Trainer for Men,EMS Muscle Stimulator, USB Stomach Muscle Toner,Portable Fitness Workout Equipment for Men Woman Abdomen/arm/leg Home Office Exercise-2pcs - Image 1](https://m.media-amazon.com/images/I/51oijMLt+VL.jpg)
![MasterUnion PecBuilder EMS Chest Trainer for Men,EMS Muscle Stimulator, USB Stomach Muscle Toner,Portable Fitness Workout Equipment for Men Woman Abdomen/arm/leg Home Office Exercise-2pcs - Image 2](https://m.media-amazon.com/images/I/51rIbhXsdJL.jpg)
![MasterUnion PecBuilder EMS Chest Trainer for Men,EMS Muscle Stimulator, USB Stomach Muscle Toner,Portable Fitness Workout Equipment for Men Woman Abdomen/arm/leg Home Office Exercise-2pcs - Image 3](https://m.media-amazon.com/images/I/61-EpGcjjqL.jpg)
![MasterUnion PecBuilder EMS Chest Trainer for Men,EMS Muscle Stimulator, USB Stomach Muscle Toner,Portable Fitness Workout Equipment for Men Woman Abdomen/arm/leg Home Office Exercise-2pcs - Image 4](https://m.media-amazon.com/images/I/619QbLZj+jL.jpg)
![MasterUnion PecBuilder EMS Chest Trainer for Men,EMS Muscle Stimulator, USB Stomach Muscle Toner,Portable Fitness Workout Equipment for Men Woman Abdomen/arm/leg Home Office Exercise-2pcs - Image 5](https://m.media-amazon.com/images/I/61TMEVBV+uL.jpg)

## Questions & Answers

**Q: does the item need/include the gel pads?**
A: Yes it does.. Everything you need to get going.. Good results to 😷

## Customer Reviews

### ⭐ Avoid !!
*by D***B on 26 March 2024*

This product worked fine for 2 days . First one broke down followed by the other . Seller only offered a refund of £3.75 ! When challenged, they replied that a full refund would only be issued on me returning the item ( at my expense) to an obscure address in China - and only then after an inspection/test ! Not good enough. They finally offered 50% refund only after I insisted ( and only then to cut my losses). Avoid this seller at all costs .

### ⭐ Not Able to Use at ALL!
*by M***I on 18 November 2023*

Definately Did Not Like the Fact That NO Connection Hole Socket! Badly Made!

### ⭐ Don't waste your money
*by M***E on 3 September 2023*

Worked for 2 days then just stopped working. Lights flash suggesting something was working but no pulsing etc. And don't expect the instructions to be any help, they appear to have been translated into English by a 3 year old.

## Frequently Bought Together

- MasterUnion PecBuilder EMS Chest Trainer for Men,EMS Muscle Stimulator, USB Stomach Muscle Toner,Portable Fitness Workout Equipment for Men Woman Abdomen/arm/leg Home Office Exercise-2pcs
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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-28*