Adopting mobile phone keypad technology and seven-key design, the product has better feel, longer life, faster response and easier operation. Large-size high-brightness OLED LCD display, more display content information Built-in chip connected to portable printer, can print out original records and test results on site Equipped with high-power speakers, on-site voice information is clearer, and equipped with headphone jack for convenient use in noisy environments Electronic warehouse modular design, can be quickly assembled with ordinary mechanical rebound tester into a new integrated digital rebound tester, Manufacturer: SOYWIM