[Bluetooth connection playing] Open a new times of speed, adopt a new Bluetooth 5.1 chip+HT837, 16W high-power decoding chip, and highly tone balance. [Ai voice intercom] New intelligent A chip, no need to connect wifi, Al voice intercom, knowledge encyclopedia, news, broadcast, map, music on demand. [Long life] Built in 1800Mah lithium-ion battery, protected by Metal oxide semiconductor tube, it will last for 168 hours and play for 4-8 hours. [TF card playing] Efficient and fast, Bluetooth 2 second quick connection, TF extended playing, supporting playing 1-326 memory card resources. [Alarm setting] The clock displays the alarm setting, the snooze mode wakes up two times, and the humanized function design meets daily needs.