Block unwanted calls using custom number patterns with up to 6 wildcards. Intercept high-frequency nuisance number segments via big data analysis. AI smart blocking with adjustable sensitivity. Block known international numbers using a database.
Extension of Dalian Science and Technology Co., Ltd.
Study JLPT vocabulary and grammar
Prepare for JLPT exams with structured study plans tailored to individual needs. Use spaced repetition to review vocabulary and grammar. Access a comprehensive grammar question bank and practice exams.