Bluetooth 5.4 Wireless Upgrade Cable with Ear Hooks and Charging Case for KZ ZSX, ZAR, PR2 — Check the 2-Pin Size
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About this product
If you already own a pair of KZ in-ear monitors, a Bluetooth upgrade cable is a cheaper way to make them wireless than buying new true-wireless buds — but the fit comes down to two small details. This KZ AE01 is a Bluetooth 5.4 wireless upgrade cable with ear hooks and a charging case, listed for the ZSX, ZAR and PR2. First the connector: KZ earphones use a two-pin socket, and the pins come in slightly different sizes, with 0.75 mm and 0.78 mm both common, while some models have a recessed socket that needs a matching connector housing. Confirm the exact pin size and whether your model's socket is flush or recessed, because a loose pin gives you a channel that cuts in and out. Second the wireless side: check which Bluetooth codecs the module supports, since that decides both sound quality and latency — if you watch video or play games, look for a low-latency mode and read what owners report. Third the practical side: how many full charges the case holds, whether the hooks must sit in the case to charge, whether the case charges over USB-C, and how much the hooks and battery add behind your ear over a long session. Also check whether the module has a microphone and how it is rated for calls. 2453 sold with a 95.8% positive rating.
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Pros & cons
Pros
- Turns an existing pair of KZ in-ears wireless instead of buying new true-wireless buds
- Bluetooth 5.4 with ear hooks and a charging case, listed for the ZSX, ZAR and PR2
- Keeps the sound signature of the earphones you already chose, with the cable simply replaced
- 2453 sold with a 95.8% positive rating
Cons
- Two-pin pins come in 0.75 mm and 0.78 mm — confirm the size and whether your socket is flush or recessed
- Check the supported Bluetooth codecs: they decide both sound quality and video latency
- Confirm how many full charges the case holds and whether the hooks must be in the case to charge
- The rating is 95.8%, slightly below the 98% typical of the rest of this batch — read the low reviews
