Does not occupy space: You can jump indoors, without hurting people, without hitting furniture, breaking the traditional rope skipping space restrictions No tripping: Solve the problem of frequent tripping due to poor coordination of hands and feet Silent jumping: There is no sound of skipping rope and hitting the ground, reducing noise pollution Small and portable: Easy to store, exercise anytime and anywhere Speaker + skipping rope: Make skipping rope more passionate, put yourself in a clear, beautiful and crisp sound, and be on the scene Sound guide cone, bass diaphragm Independent cavity structure Echo noise reduction processing Excellent Bluetooth 4.1 transmission technology: Bluetooth 4.1 decoding chip, barrier-free to enjoy music over 10 meters without barriers Built-in rechargeable lithium battery, 400 mA Average volume is about 6 hours, quarter volume about 12 hours and full volume only takes about 3 hours. Connection method: Bluetooth / TF card Output power: 3W Distortion: 76db Transmission distance: 10M Use time: 8H (60% volume) Material: ABS plastic + electronic original + speaker net + silicone Product color: pink, blue