Using Dual ES9038Q2M chip CNC aluminum alloy body, size: 57x98x20mm Adopt two TI OPA1622 headphone amplifier chips Battery capacity is 4200mAh, battery life is about 8 hours Using the latest QCC5125 Bluetooth 5.1 module, while supporting -HD or LDAC protocol Complete audio output interface: 3.5mm single-ended LO 3.5mm single-ended PO 2.5mm balanced PO 4.4mm balanced PO Product Name:Z4 QCC5125 Bluetooth 5.1 Car Digital Turntable HiFi USB MP3 Player Model:Z4 Size:57x98x20mm Data port: USB Bluetooth version:5.1 Bluetooth chip: QCC5125 Batterycapacity: 4200mAh Battery life: About 8 hours DSD sampling rate:DSD256 Chip: Dual ES9038Q2M PCM sampling rate:384k 32bit Bluetooth protocol:-HD, LDAC Colour:White Material:Metal Package Contents: 1 * Music player 1 * Charging cable Only the above package content, other products are not included. Note: Light reflection 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.