New Arrival of classical cassette tape shape with Bluetooth speaker! After inserting SD card, you can enjoy music as feeling of nostalgia. ♪With light weight of compact, when closed the lip of the case, the quality of music would be changed. [Size]Product Size: approx. 100×63×12ｍｍ, exclusive case size: approx. 114×80×22ｍｍ/Weight： approx. 80ｇ（included special case） [SPEC]Product name: 90 cassette speaker/Product Material: ABS resin and metal/Product Size: approx. 100×63×12ｍｍ/Weight: approx. 80ｇ（included exclusive case）/Bluetooth: 5.3/Battery Capacity: 400mAh (lithium ion battery)/Rated voltage: 5V⎓1A/Power Consumption: ２W /Continuous playback: approx. 6hours (At maximum volume)/Charging time: approx. 2hours [Accessories]Exclusive case/USB cable（USB Type-C/USB Type-A）/operating instructions. [Notice]This product is not cassette tape, which is designed like a cassette tape with Bluetooth speaker. This product is designed and marketed by a Japanese company.