Coollang Xiaoyu Smart Tennis Tracker Sensor Motion Analyzer Bluetooth 4.0 intelligent Sensor  Specification: Item no: Coollang Xiaoyu 2.0 Descrlption: Smart Sensor for Tennis Racket Chip: M3 enhanced kernel Material: Low sensitive silicone material、PC polymer materials Battery: Working time - 6 hours Charging time - 90 minutes by USB cable Color: Yellow Size :30*10(mm) Weight: 6.0 g (net weight of hardware) Operating system Support for Android 4.3 and IOS 7 or higher system Wireless transmission Bluetooth 4.0、 low power communication technology   Feature: !#!amp!*!bull; Data Monitoring: Accurately track speed、 strength、 angle、 and other data、 intelligent identify types of action、 through data analysis、 quickly master operating essentials !#!amp!*!bull; Motion Analysis: Comprehensive analysis of explosive power to help you better mastery of the skill of playing badminton !#!amp!*!bull; Sports Statistics: Analysis of the motion data index、 restore the real movement to help you get a balanced development !#!amp!*!bull; Health Management: Set up a exercise targets、 and put forward reasonable suggestions and data analysis !#!amp!*!bull; Competitive and Make Friends: Strength rankings winners and losers are wonderful Referring power rankings to find the same strength of opponents、 more help ascension、 rich your social communication experience !#!amp!*!bull; Wireless Sync Real-time Recording: Real-time racking of your dynamic trajectory、 hitting collect data !#!amp!*!bull; Getting Tutor: Adjustment skills of sport、 better guide for beginners、 standardize basic motor skills !#!amp!*!bull; Rapid Escalation Tennis Promoter: By understanding the characteristics of the individual shots、 offensive strategy and physical condition、 quickly adjust sparring skill、 let sports more exciting and more technical !#!amp!*!bull; Master Fighting: Analysis the professional players and yourself hitting data、 let you know your own space of improvement and challenges. !#!amp!*!bull; Fast Charging: Using USB cable socket charging、 whether laptop、 desktop、 or wall outlet、 as long as there are USB jack、 can fast charging at any time  Package Included: 1*Smart tennis racket sensor 1*Silicon ruber case 1*Charge cable 1*3M tape  See more details: