Be aware, I bought these for a specific project where they work perfectly, BUT, they come with headphones for a reason, there is no internal speaker, there is NO external antenna either..... it is arguably the cheapest made fm receiver you can possibly buy. I needed a small portable FM receiver to attach to a powered speaker with a 1/8" to rca cable and they did EXACTLY what I needed. Other than that..... there is better options out there.