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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-23 · 7 min read · Independent comparison
• caojunzhen 2 — biggest strength: a 5-port, dual-ecosystem adapter with both 3.5mm and USB-C headphone jacks, plus 60W PD charging over Lightning or USB-C.
• caojunzhen 2 — biggest trade-off: it tops out at 60W, so it suits phones and small devices rather than power-hungry laptops, and its port mix is more complex than a simple two-in-one.
• Ganlaila 2 — biggest strength: 100W PD pass-through charging with a single 3.5mm jack, sold as a 2-pack so you can keep one at home and one in the car.
• Ganlaila 2 — biggest trade-off: it is USB-C only, so older Lightning iPhones are out, and there is no USB-C headphone jack option.
• Who caojunzhen 2 is for: anyone juggling an iPhone and a USB-C device who wants one adapter for charging, calls, gaming and music.
• Who Ganlaila 2 is for: USB-C-only households that want maximum charging headroom and a spare adapter on hand.
The caojunzhen 2 is the more versatile of the two on paper. It packs five ports into one adapter: a USB-C charging input, a Lightning to USB-C charging path, a 3.5mm headphone jack, and a USB-C headphone jack. In practice that means you can plug in a charger and still listen through whichever headphone you already own — wired 3.5mm buds, or a USB-C headset. The brand also notes it supports data transfer, not just charging and audio.
Audio quality is handled by a built-in DAC rated at 16-bit/192kHz or 24-bit/96kHz, with a 16-bit/48kHz ADC for the microphone side. Translation for a normal buyer: it is designed to pass clean audio without the hiss or electrical noise that cheap splitters sometimes introduce, and it should handle calls as well as music. Charging runs up to 60W PD, and the chip inside negotiates the voltage and current each device asks for rather than forcing a fixed output — the brand recommends pairing it with a PD wall charger to actually hit fast-charge speeds.
Who should buy it: someone whose household mixes an iPhone 15/16 or older Lightning iPhone with a Samsung Galaxy, Pixel or similar USB-C phone. The compatibility list covers iPhone 7 through iPhone 16 Pro Max on the Lightning side and a long list of Galaxy and Pixel models on the USB-C side. If you want one adapter that travels between an iPhone and an Android phone without you thinking about it, this is the one.
Ganlaila 2: Who It's For
The Ganlaila 2 is a tighter, more focused design. It is a 2-in-1: one USB-C to 3.5mm audio adapter with 100W PD pass-through charging. You plug it into a USB-C phone, tablet or laptop, plug your wired headphones into the 3.5mm jack, and plug your charger into the adapter — music and charging at the same time, no picking one or the other.
The headline number here is 100W PD. That is a big step up from 60W, and it changes who this adapter is for. On a phone, both adapters will charge fine. On an iPad Pro, a MacBook Pro or MacBook Air, or a USB-C laptop, the Ganlaila 2 can pass through enough power to keep a larger device topped up, which the 60W adapter may struggle with under heavy load. The brand lists compatibility with iPhone 15/15 Pro, iPad Pro/Air/Mini, MacBook Pro/Air, Samsung Galaxy S24/S23/S22/Ultra, Google Pixel and all USB-C devices, with plug-and-play and no driver needed.
Sound is handled by a built-in HiFi DAC chip, which the brand describes as delivering clear, stable, noise-free audio with no delay or static — useful for calls, music and gaming. The build is gray with a metallic finish, and the adapter is small and light at 18.14 g and roughly 4.72 x 1.48 x 0.34 inches, so it disappears in a pocket or glovebox.
The practical twist is the 2-pack. You get two identical adapters, which is genuinely useful if you want one permanently in the car for aux input and one at your desk. A limited manufacturer warranty is listed.
Who should buy it: USB-C-only households — modern iPhone 15/16 owners, Android users, iPad and MacBook users — who want the highest charging headroom available in a dongle this size and a spare for the car.
Who should skip it: anyone still on a Lightning iPhone, since this adapter is USB-C only. And if you specifically want a USB-C headphone jack rather than 3.5mm, the Ganlaila 2 does not offer one.
• Best for mixed iPhone + Android households → caojunzhen 2. Its Lightning and USB-C charging inputs cover both connector types in one unit.
• Best for maximum charging speed → Ganlaila 2. 100W PD beats the caojunzhen 2's 60W, and it matters on tablets and laptops.
• Best for wired headphone flexibility → caojunzhen 2. You get a 3.5mm jack and a USB-C headphone jack; the Ganlaila 2 offers 3.5mm only.
• Best for a USB-C-only setup → Ganlaila 2. Simpler, lighter, and no ports you will never use.
• Best for charging a laptop while listening → Ganlaila 2. The 100W pass-through is the one to pick for a MacBook or iPad Pro.
• Best for keeping a spare in the car → Ganlaila 2. It ships as a 2-pack, so one can live permanently on the aux cable.
• Best for older iPhones → caojunzhen 2. The Lightning compatibility list runs from iPhone 7 up through iPhone 16 Pro Max.
• Best for data transfer alongside audio → caojunzhen 2. The brand states data transfer is supported.
In my opinion, most people shopping this category own a USB-C phone, and for them the Ganlaila 2 is the pick I would make. The 100W PD pass-through gives it real headroom for tablets and laptops, the HiFi DAC covers calls and gaming, and the 2-pack means you are never hunting for the adapter. I would only switch to the caojunzhen 2 if you still carry a Lightning iPhone or you want both a 3.5mm and a USB-C headphone jack in one unit — in that case its dual-ecosystem design is worth the extra port complexity. Check the current price on Amazon before deciding, since the price gap is the one thing that can flip this call either way.
You cannot force more current into headphones than they accept, but you can avoid slowing things down. Use a PD wall charger rather than a low-power USB port — the caojunzhen 2's brand specifically recommends a PD charger to reach fast-charge speeds, and the Ganlaila 2 supports up to 100W PD pass-through. A higher-wattage PD source gives the adapter more to work with.
Both adapters here are pass-through audio adapters, not headphone chargers — you plug a charger into the adapter, plug the adapter into your phone, and your headphones plug into the 3.5mm or USB-C jack. Charging your wireless headphones themselves still happens through their own case or cable. If your headphones are wired, they draw no power at all.
No, not in this setup. These adapters pass power to your phone or laptop, not to your headphones, and the caojunzhen 2 uses a chip that negotiates the correct voltage and current for each device, which is designed to protect it. Wired headphones over a 3.5mm jack receive only audio signal, not charging current.
Bose headphones charge through their own USB-C or micro-USB port and their own cable — an adapter like these does not change that. What these adapters do is let you keep a PD charger connected to your phone while you listen, so your phone is not draining while you use wired Bose headphones. For the headphones themselves, use the cable and charger Bose specifies.
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See also: MTIQHS 3-in-1 vs Bawanfa Plus USB-C: Fast Charge Headphones, fast charge headphones, SIXSIM USB-C Headphone Adapter vs Matsusho 2: Fast Charge