Fiio JM21

Technical Parameters
DAC: Dual Cirrus Logic CS43198 DACs
Processor: 6nm 8-core Qualcomm Snapdragon 680 
Storage: 3G RAM+32G ROM
Amplification: 700mW + 700mW output power
Screen: 4.7-inch high-resolution display
Battery Life: 12.5-hour playback time (Single-ended), 9.5hours ( balanced)
Operating System: Android 13
Audio Outputs: 4.4mm balanced+3.5mm single-ended headphone jacks
Connectivity: Supports SPDIF and USB audio output.
Bluetooth Version: 5.0
Bluetooth Transmission: SBC/AAC/aptX/aptXHD/LHDC/LDAC
Bluetooth Reception: SBC/AAC/LDAC
Package: Fiio JM21 *1, USB data cable*1