
Learn English with native English tutors. Our courses are designed to meet your specific needs. From communication skills to business English, from IELTS to TOEFL, ProVox will teach you. Find out which course is best for you.
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English Courses
Choose the perfect English learning solution for your needs
All courses can be done 1:1 or as group classes
Online or in-person
Flexible English Course
Our most popular course, with live, coach-led classes and a clear learning plan.
Flexible learning:
- Choose your time, coach and topic
- Join online group or private classes 24/7
- Follow a structured course for steady progress
Best for learners who want flexibility in the topics they learn
Prices start at just $20 per class
Learn moreOnline or in-person
Professional Communication
This is a business English course based on the VOX: Professional Communication curriculum. This course will teach you the necessary skills to use English professionally at your job and can be completed in just 12 weeks. Your coach will tailor the sessions to your workplace and industry.
- Choose your time and coach
- 24 structured 1-on-1 coaching sessions
- The full VOX — Professional Communication curriculum
- Personalized feedback tailored to your job
Best for learners who want to focus on using English at work.
Prices start at just $25 per class
Learn moreOnline or in-person
IELTS / TOEFL preparation
Get ready for your test with coaches who will help you learn the necessary skills to improve your test score.
Flexible learning:
- Choose your time, focus and coach
- Join online group or private classes 24/7
- Practise with mock tests and online exercises
- Learn key skills and test strategies
Best for learners who want structured learning to prepare for official English language tests
Prices start at just $25 per class
Learn moreOnline or in-person
Confident Communication
This course focuses on helping you improve general skills like speaking and listening to help you communicate naturally and confidently.
- Choose your time and coach
- Every session structured to meet your needs
- Learn essential skills like expressing yourself, connecting with others, and showing confidence
Best for learners who want to improve everyday speaking and listening
Prices start at just $20 per class
Learn morePreview
See for yourself
ProVox teaches communication skills that you can use in real situations. For example, how should you respond when a disagreement happens? Listen to this sample audio exercise from session 11 in the VOX: Professional Communication curriculum. You can also check out a preview of the book to see what other types of skills you will learn.
This audio exercise is from Core Skill 2 — Clarity and Accuracy. Each session includes real workplace scenarios like this one.
Who will coach me?
Meet the ProVox Team
Coach Brad

I'm Brad Herdt, founder of ProVox and a certified English coach with over a decade of experience working with adults across Vietnam and beyond.
My approach is built on Communicative Language Teaching. This method is grounded in real conversation, not memorization or grammar drills. My goal isn't to help you speak perfect English — my goal is to help you become a skillful communicator. Each session is designed around how you actually use English: at work, in meetings, with colleagues, or in everyday situations where confidence matters.
I started ProVox because I enjoy seeing individuals grow into confident, natural English speakers. That's why I exclusively work 1-on-1 or in small groups. I take time to understand your world, and tailor each session to your real goals.
If you're ready to communicate with more clarity and confidence, I'd love to work with you.
TESOL/TEFL Certified — Global Leadership College
Coach Khoa

I'm an Australian with Vietnamese heritage and have been living and working in Vietnam since 2014. During that time, I've travelled extensively across the country and worked with people from a wide range of industries, cultures, and professional backgrounds.
Through my experience in international workplaces, I've seen that many capable professionals struggle not because of their English ability, but because they lack confidence using it. Speaking up in meetings, participating in training, networking, or simply holding a conversation can feel challenging, even when you know more English than you think.
I believe effective communication is about confidence, clarity, and feeling comfortable expressing yourself. My goal is to create a relaxed and supportive environment where you can develop those skills, receive practical feedback, and build confidence using English at work, in meetings, during training, or in everyday life.
I bring a friendly and approachable style, along with real-world experience, and I'm genuinely committed to helping you grow and achieve your goals.
Australian · Based in Vietnam since 2014
Contact
Let's talk about your goals
Start with a free 30-minute consultation. No commitment. Just a conversation about your goals — and I'll tell you honestly whether we're a good fit.
Indochina Time (ICT) · GMT+7 · Response within 24 hours

