【Good compatibility】LCD instrument adopts digital communication and has good compatibility.【High Quality Material】Made of high quality material, durable and practical. Suitable for HIMO Z16/Z20 electric bikes. Professional manufacture, stable performance and high reliability. 【Waterproof function】Waterproof protection, protect your electric bike in time, and ensure safe riding in rainy days. 【Quality Guarantee】 If for any reason, you are not completely satisfied with the purchased product, please do not hesitate to contact us by email as soon as possible. We will do our best to solve your problem as soon as possible.