TSINGA GROUP(HONGKONG)CO.,LTD was established in 2006,it's a leading supplier of high quality fetal doppler's. it's baby doppler's. Angeltalk was our new products with very high quality. That's steady and matured product.It's good selling in European market, and then another countries too. We welcome you to be our distributors and exclusive distributors. Any needs or problems pls contact me jumpermedical at gmail dot com.