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        JadeAudio FiiO JM21 Hi-Res Music Player MP3 with Snapdragon 680      
    
  	
	Experience the perfect harmony of performance and audio precision with the JM21 — the first-ever portable HiFi player to feature the Qualcomm® Snapdragon™ 680 chipset. Built on a cutting-edge 6nm process and equipped with an 8-core Kryo 265 CPU clocked up to 2.4GHz, the JM21 delivers ultra-smooth operation, enhanced efficiency, and lightning-fast responsiveness — all in a sleek, pocket-sized design.
Features:
Powerful Snapdragon 680 (6nm, Octa-Core) – Unmatched performance and energy efficiency in a HiFi player 
Fully Balanced Audio Architecture – Crystal-clear, immersive sound reproduction 
Dual CS43198 DACs + Dual High-Performance Op-Amps – Professional-grade audio fidelity 
Dual Custom Femtosecond Crystal Oscillators – Ultra-precise timing for cleaner audio output 
700mW + 700mW Output Power – Plenty of headroom for demanding headphones 
Ultra-Slim 13mm Body – Sophisticated and compact for true portability 
4.7-Inch HD Display – Vibrant visuals with intuitive touch control 
Up to 12.5 Hours Battery Life – Listen all day, anywhere 
Proprietary DAPS System (No Global SRC) – Pure Android 13 audio without system-level resampling 
Dual Output Ports (4.4mm Balanced + 3.5mm Single-Ended) – Flexible headphone compatibility 
SPDIF / USB / Line Out Options – Versatile output modes for every setup 
  	 
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	Technical Specification 
	
							
Material Aluminum alloy + Plastic 
Dimensions. About 120.7x68x13mm 
Weight: About 156g (excluding transparent case) 
SoC: Qualcomm Snapdragon 680 
RAM and Storage: 3G RAM+32G ROM (22G ROM usable) 
Storage expansion: Standard microSD card slot, up to 2TB 
Android: Android 13 
Working mode: Android mode/Pure music mode/USB DAC 
mode/Bluetooth receiving mode 
WiFi: 2.4GHz/5GHz, supports DLNA, AirPlay, WiFi music transfer, etc. 
DAC: CS43198*2 
Op-amp: SGM8262*2 
Display: 4.7-inch HD (750*1334) 
Outputs: Single-ended 3.5mm PO/SPDIF + balanced 4.4mm 
USB connector: Type-C USB2.0 data/charging/USB Audio 
Bluetooth version: 5.0 
Bluetooth transmission: SBC/AAC/aptX/aptX HD/LHDC/LDAC 
Bluetooth reception: SBC/AAC/LDAC 
Local decoding: 384kHz/32bit, DSD256 (Native) 
USB DAC: 384kHz/32bit, DSD256 (Native) 
USB Audio: 768kHz/32bit, DSD512 (supports DoP/D2P/Native) 
Coaxial output: 384kHz/24bit, DSD128 (supports DoP/D2P) 
Output power 1: L+R>245mW+245mW (320/THD+N < 1%/single-ended) 
Output power 2: L+R≥700mW+700mW (320/THD+N < 1%/balanced) 
Signal-to-noise ratio: 2130dB 
Noise floor: <1.5µV 
Output impedance: < 10 
THD+N: <0.0006% 
Battery capacity: 2400mAh 
Battery life. Single-ended 12.5h, balanced 9.5h 
Charging time: About 2h (5V 2A power supply) 
Warranty: 1 year 
 				 
 
	What Is In The Box 
	
							
JadeAudio FiiO JM21 Hi-Res Music Player MP3 with Snapdragon 680*1 
PET film screen protector (pre-applied)*1 
Transparent case*1 
USB cable*1 
Quick start guide*1 
Warranty card*1 
 				 
 
 
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	Manufacture Description 
	
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