you can judge whether the swing rhythm is stable and correct

Whether there is a steel ring: with a steel ring

UV printing

pink purple

wood and metal doors

Bluetooth Mini Wireless Cartoon Speaker Color:Pink you can judge whether theProduct information Applicable scenarios: car, desktop, fitness, outdoor, home, mobile and portable, broadcasting system, outdoor lawn Speaker unit: 4W 5W Type: Bluetooth speaker Connection method: Bluetooth connection Interface type: USB Frequency response range: 30Hz 15kHz Output power: 3W Signal to noise ratio: 60dB Power supply mode: built in lithium battery Playing time: 6 hours Bluetooth protocol: 5. 0 Effective distance: 10 meters Operation