Custom full-range speakers: Using polymer speaker materials, the sensitivity is improved, the complete audio signal spectrum is extracted, the shocking sound effects are played, and the smart auditory language is created. E.A.I Sound Store Electric Integration Technology: DSP sound processing technology and E.A.I sound-electric integration technology match the speaker structure to release and full original sound. E.A.I BASS BOOST bass enhancement technology, enhance bass performance. Continuation of the retro concept Reinterpret the nostalgic style The standard Phono player interface can be directly connected to the Tokiwa player to start the slow life of vinyl. Retro , classic resurgence Retro design and modern beauty collide with each other, travel through time and space to enjoy a sound music journey. Japanese design aesthetics Connection mode: card, Bluetooth connection, 3.5MM wired Life time: 6 hours (inclusive) to 8 hours (not included) Speaker unit: single speaker Function: radio, call function, card can be inserted. Bluetooth Protocol :Bluetooth 5.0 Colour: Rosewood Gold Material: wood Size: 16 x 8 x 9.1cm Package Contents: 1 x Bluetooth Speaker 1 x Charger Cable 1 x Audio Cable 1 x English Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.