LIGHTNING DONGLE
JCALLY JA10i
A Lightning dongle with a 3.5 mm output and a built-in mic. About 4 g.
POWER AT 32 Ωest.7.9mW3.5 mm, worked out from the stated loads
OUTPUT IMPEDANCENot statedNo data from the manufacturer
SNRNot statedNo data from the manufacturer
PRICENo price yet
OUTPUTS3.5 mm
DAC CHIPApple original C100 plug
PARAMETRIC EQNot statedJCALLY lists none
CONTOURNot supported
Numbers are the manufacturer's stated figures unless marked as measured; sources linked below. Est. marks a power worked out between the stated loads.
Outputs and power
3.5 mm
8.4mWat 30 Ω
Spec image: 8.4 mW at 30 Ω, per channel or both channels not stated
Output impedance -
Distortion-81 dB (JCALLY does not say THD or THD+N)
Frequency response20 Hz - 20 kHz
Not stated: gain, supply voltage, SNR, crosstalk.
Is it enough for your headphones?
JCALLY rates the JA10i at 8.4 mW into 30 Ω. Below is how much of that is left to spare for each kind of headphones when you listen loud, with peaks at 110 dB. A figure marked est. is worked out from that rating.
Sensitive IEMsMulti-driver sets that hiss on strong sources
needs 0.6 mWest. 4.5 mW at 16 Ω+9 dBMost IEMsTypical in-ears, 16 to 50 Ω
needs 3.2 mWest. 7.9 mW at 32 Ω+4 dBEasy-to-drive headphonesClosed and portable, 32 Ω
needs 16 mWest. 7.9 mW at 32 Ω3 dB shortHard-to-drive headphones300 Ω, HD 600 class, hungry for voltage
needs 20 mWest. 0.8 mW at 300 Ω14 dB shortMost planarsPlanar magnetic, low impedance, need current
needs 50 mWest. 7.9 mW at 32 Ω8 dB shortDemanding planarsThe hardest loads, desktop territory
needs 251 mWest. 4.2 mW at 60 Ω18 dB shortThe device
From JCALLY's spec images unless markedInputLightning
FormatsPCM up to 24-bit / 48 kHz
DAC chipApple original C100 plug
Works withFully compatible with all Apple models, no pop-up risk
MicListening, calls, inline control, live streaming/karaoke, U-shield/K-bao (USB security keys), selfie stick, etc.
BuildOne-piece carved aluminium alloy, anodized fine-sandblasted surface
Parametric EQNo data from the manufacturer. Not supported in Contour.
Size15.5 × 10.3 × 11.2 mmThe spec table gives length 15.5 mm; the dimension drawing in product details, image 18, labels the length 18 mm (with 11.2 mm and 10.3 mm). The 18 mm may include the plug, but the manufacturer does not say. The catalog uses the spec table value.
WeightAbout 4 g
The manufacturer names the C100 (an Apple Lightning plug/certification part) as the DAC chip; no separate DAC part is stated.
More like this
Sources
Checked 6 Nov 2026jcally.com · the product page
wanwang.xin · the spec image
Used for power, noise and distortion, frequency response, formats, the DAC chip, microphone, size, weight and build