BT01 APT-X 4.1 Specifications

Master Chip	CSR8645
Bluetooth Version	4.1 supports APT-X, AAC, SBC
Frequency Range	20Hz ~ 20KHz
Stereo Resolution	116dB
SNR Signal to Noise Ratio	-115dB
Headphone Jack	0.78mm, 2-pin
Battery Capacity	86mAh
Charging Time	1.5 hours
Play Time	7 hours
Charing Interface	Micro USB
Transmission Range	10 meters
Input Interface	Micro USB, USB (iOS)
Output Power	15mW (32 Ω)
System Supports	Android, iOS, PC, MAC
Custom App	Hiby music player
Color	Black
Package Content	Premium Bluetooth Cable x 1 Headphones Storage Bag x 1 Manual x 1

Comparison
Model	S9 PRO PLUS	S9 PRO
Product Type	Split Style	Split Style
DAC Chip	ESS9038Q2M	ESS9038Q2M
Headphone Jack	3.5mm+4.4mm	3.5mm+2.5mm
Physical Button	2	0
Sampling Rate Indicator Light	6	6
RGB LED Light	×	×
MQA	×	×
PCM 32bit/192kHz	√	√
PCM 32bit/384kHz	√	√
PCM 32bit/768kHz	√	√
DSD 64	√	√
DSD 128	√	√
DSD 256	√	√
DSD 512	√	√
ASIO	√	√
PC Drive	√	√
Switching Filter	√	×
SNR	3.5mm PO:123dB(@32Ω) 4.4mm BAL:120dB(@32Ω)	3.5mm PO:120dB(@32Ω) 2.5mm BAL:119dB(@32Ω)
Channel Separation	3.5mm PO:75dB(@32Ω) 4.4mm BAL:115dB(@32Ω)	3.5mm PO:80dB(@32Ω) 2.5mm BAL:118dB(@32Ω)
THD+N	3.5mm:0.0019%@32Ω 4.4mm:0.0008%@32Ω	3.5mm:0.0006%@32Ω 2.5mm:0.0012%@32Ω
Output Power	3.5mm PO:138mW@32Ω 4.4mm BAL:180mW@32Ω	3.5mm PO:100mW@32Ω 2.5mm BAL:200mW@32Ω
Frequency Response	20Hz-40kHz	20Hz-50kHz
Recommended Earphone Resistance Range		8-300Ω
Headphone with mic	Compatible	Compatible
Transmission interface	Type-C	Type-C
Power System	No need to charge. Plug and play	No need to charge. Plug and play
Shell Material	Aluminum alloy	Aluminum alloy
Color	Black, Silver, Blue	Black, Silver
Dimensions	55×25×11mm	59×18×8mm
Net weight	17g	11g
Supported System	Android, Windows, Mac OS, iPad OS, Harmony OS (Please note: a Lightning to Type-C cable with OTG function has to be purchased separately to support iOS)	Windows, Mac OS, iPad OS, Android, iOS (Please note: For iOS users, the Lightning OTG cable has to be purchased separately)
What's in the box	Hidizs S9 PRO PLUS x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 User manual x 1 Warranty card x 1	Hidizs S9 PRO DAC & AMP x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 Rear clip x 1 User manual x 1 Warranty card x 1

Comparison
Model	S9 PRO PLUS	S9 PRO
Product Type	Split Style	Split Style
DAC Chip	ESS9038Q2M	ESS9038Q2M
Headphone Jack	3.5mm+4.4mm	3.5mm+2.5mm
Physical Button	2	0
RGB LED Light	×	×
MQA	×	×
PCM 32bit/192kHz	√	√
PCM 32bit/384kHz	√	√
PCM 32bit/768kHz	√	√
DSD 64	√	√
DSD 128	√	√
DSD 256	√	√
DSD 512	√	√
ASIO	√	√
PC Drive	√	√
Switching Filter	√	×
SNR	3.5mm PO:123dB(@32Ω) 4.4mm BAL:120dB(@32Ω)	3.5mm PO:120dB(@32Ω) 2.5mm BAL:119dB(@32Ω)
Channel Separation	3.5mm PO:75dB(@32Ω) 4.4mm BAL:115dB(@32Ω)	3.5mm PO:80dB(@32Ω) 2.5mm BAL:118dB(@32Ω)
THD+N	3.5mm:0.0019%@32Ω 4.4mm:0.0008%@32Ω	3.5mm:0.0006%@32Ω 2.5mm:0.0012%@32Ω
Output Power	3.5mm PO:138mW@32Ω 4.4mm BAL:180mW@32Ω	3.5mm PO:100mW@32Ω 2.5mm BAL:200mW@32Ω
Frequency Response	20Hz-40kHz	20Hz-50kHz
Headphone with mic	Compatible	Compatible
Transmission interface	Type-C	Type-C
Power System	No need to charge. Plug and play	No need to charge. Plug and play
Shell Material	Aluminum alloy	Aluminum alloy
Color	Black, Silver, Blue	Black, Silver
Dimensions	55×25×11mm	59×18×8mm
Net weight	17g	11g
Supported System	Android, Windows, Mac OS, iPad OS, Harmony OS (Please note: a Lightning to Type-C cable with OTG function has to be purchased separately to support iOS)	Windows, Mac OS, iPad OS, Android, iOS (Please note: For iOS users, the Lightning OTG cable has to be purchased separately)
What's in the box	Hidizs S9 PRO PLUS x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 User manual x 1 Warranty card x 1	Hidizs S9 PRO DAC & AMP x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 Rear clip x 1 User manual x 1 Warranty card x 1

Comparison
Model	S9 PRO PLUS	S9 PRO
Product Type	Split Style	Split Style
DAC Chip	ESS9038Q2M	ESS9038Q2M
Headphone Jack	3.5mm+4.4mm	3.5mm+2.5mm
Physical Button	2	0
RGB LED Light	×	×
MQA	×	×
PCM 32bit/192kHz	√	√
PCM 32bit/384kHz	√	√
PCM 32bit/768kHz	√	√
DSD 64	√	√
DSD 128	√	√
DSD 256	√	√
DSD 512	√	√
ASIO	√	√
PC Drive	√	√
Switching Filter	√	×
SNR	3.5mm PO:123dB(@32Ω) 4.4mm BAL:120dB(@32Ω)	3.5mm PO:120dB(@32Ω) 2.5mm BAL:119dB(@32Ω)
Channel Separation	3.5mm PO:75dB(@32Ω) 4.4mm BAL:115dB(@32Ω)	3.5mm PO:80dB(@32Ω) 2.5mm BAL:118dB(@32Ω)
THD+N	3.5mm:0.0019%@32Ω 4.4mm:0.0008%@32Ω	3.5mm:0.0006%@32Ω 2.5mm:0.0012%@32Ω
Output Power	3.5mm PO:138mW@32Ω 4.4mm BAL:180mW@32Ω	3.5mm PO:100mW@32Ω 2.5mm BAL:200mW@32Ω
Frequency Response	20Hz-40kHz	20Hz-50kHz
Headphone with mic	Compatible	Compatible
Transmission interface	Type-C	Type-C
Power System	No need to charge. Plug and play	No need to charge. Plug and play
Shell Material	Aluminum alloy	Aluminum alloy
Color	Black, Silver, Blue	Black, Silver
Dimensions	55×25×11mm	59×18×8mm
Net weight	17g	11g
Supported System	Android, Windows, Mac OS, iPad OS, Harmony OS (Please note: a Lightning to Type-C cable with OTG function has to be purchased separately to support iOS)	Windows, Mac OS, iPad OS, Android, iOS (Please note: For iOS users, the Lightning OTG cable has to be purchased separately)
Packing List	Hidizs S9 PRO PLUS x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 User manual x 1 Warranty card x 1	Hidizs S9 PRO DAC & AMP x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 Rear clip x 1 User manual x 1 Warranty card x 1