Description
The Catitru i25 is an earhook true wireless set in black, ASIN B0F1SZJHXP, listed since March 2025, carrying a 5.0 star average across 646 ratings and ranked 536th in Amazon’s Electronics category, 93rd in Earbud and In-Ear Headphones and 23rd in Over-Ear Headphones. That last placement is an Amazon categorization error rather than a description of the product, since this is a hooked in ear bud and not an over ear headphone. Before anything else: a second listing for a Catitru i25 exists on this site under a different ASIN, so check which version you are ordering. The earlier i25 listing quotes its own figures and they are not identical to these.
Who the earhook design suits
The third bullet describes a soft, flexible 45 degree earhook structure and quotes 7 grams per bud. A hook carries the weight of the bud over the top of the ear, so it stays put through impact instead of relying on tip pressure alone. That suits high intensity training and anyone who has lost a bud mid run. Seven grams is on the heavier side for a single bud, which is the cost of the hook.
The tradeoffs are the usual ones: hooks compete for space with glasses arms, hats and helmet straps, and they take longer to put on. Three sizes of silicone tips ship alongside the hooks, which is the right combination, hooks for position and tips for seal. If you want the hook shape from an established brand, the Beats Powerbeats Pro are the reference version, and the Jabra Elite 8 Active solve secure fit without a hook.
Connection: this listing names its codecs
The first bullet states an “AAC/SBC audio decoder”, and that is worth crediting, because almost nothing else in this price bracket names a codec at all. SBC is the baseline every Bluetooth device supports. AAC is the codec that matters on Apple devices and is also used by many Android phones. Both are lossy. What the pairing means in practice is that an iPhone owner gets AAC, which is the best this set can do, and an Android owner gets AAC or SBC depending on the phone. What it also means is that there is no aptX and no LDAC here, so there is no high resolution or lossless path on this product, and none is claimed.
Bluetooth is version 5.3, with dual channel transmission and support for the HSP, HFP, A2DP and AVRCP profiles. Those are profiles rather than codecs and every audio device supports them. The bullet claims transmission speed 150 percent higher and stability 50 percent higher than Bluetooth 5.2, with no measurement method given for either, so treat both as manufacturer figures.
The same bullet quotes “100ms low latency”. One hundred milliseconds is not low by current standards. Dedicated low latency modes typically sit in the 40 to 70 millisecond range, and 100 milliseconds is enough for visible lip sync error on video and a noticeable lag in fast games. It is honest of the listing to publish a figure at all, and the figure it publishes is mediocre.
What is not mentioned
Multipoint pairing to two devices at once, a companion app, transparency mode, wear detection and firmware updating are all absent from this page. Assume none exist. There is no active noise cancellation either; the ENC in the title is microphone side processing for calls, which improves what the other party hears and does nothing about the noise reaching you.
Battery: 48 hours in the bullet, 56 in the description
The fourth bullet gives 6 to 8 hours of playtime from a single charge under normal use, with the case taking the total to 48 hours, plus a 10 minute quick charge for 2 hours of playback. The product description at the head of the listing instead says “56Hrs Playtime”. Those are two different totals published on the same page, and nothing resolves them.
The bud figure is the one that governs your day, and it is consistent at 6 to 8 hours. Treat the total as somewhere in the high forties and confirm with the seller if it matters. The case carries an LED display showing charge from 1 to 100 percent, which is more precise than the four segment indicators common at this price. Every quoted playtime is a best case at moderate volume, and this listing does not say which volume. The sibling Catitru T16 has the same problem with its own total quoted two ways, which suggests a pattern in how this brand writes its listings rather than a one off error.
Fit, drivers and a water code that is not real
The driver is described as a 14.2 millimeter composite diaphragm, which is large for an in ear design. The same bullet then claims the design serves “to increase the audio frequency by 45% (20Hz-20kHz)”. That sentence does not describe anything measurable: 20 Hz to 20 kHz is the standard human hearing span quoted by nearly every headphone made, and a percentage increase in audio frequency is not a meaningful quantity. There is no impedance, sensitivity or frequency response tolerance published.
The water claim is the broken field. The third bullet says “IP7 Waterproof” and “IP7 certified waterproof technology”, and the specification says only “Water Resistance Level: Waterproof”. IP7 is not a valid IP code. Real codes carry two positions, one for solid ingress and one for liquid, which is why genuine ratings read IPX4 for splash resistance or IPX7 for immersion. “IP7” cannot be checked and there is no certifying body named. The correct reading is that no water rating is published. Treat the set as sweat resistant at best, and remember that even a real IPX7 excludes seawater, chlorinated pool water and pressurized water while degrading with age.
Because these seal the ear canal and have no transparency mode, they are the wrong product for cycling or road running. Sealing your ears removes your awareness of traffic. Use them in a gym or on a treadmill, and choose from the designs that leave the ear canal open if you train on roads.
Other oddities
The Included Components field lists only “Owner’s Manual”, contradicting the bullets that itemize three tip sizes and a charging case. The Batteries field reads “1 A batteries required”, which is import noise. Form Factor reads “Over Ear” while Ear Placement reads “In Ear”, the same confusion that produced the Over-Ear Headphones sales rank.
The 5.0 star average across 646 ratings is worth a note. A perfectly clean average over several hundred ratings is uncommon on any product, because normal variation in fit and expectation usually produces some lower scores. It is not evidence of anything by itself, but it is unusual enough to weigh alongside a listing that gives two different totals for its own battery. Comparable sets are collected in the in ear and earbud style headphones section.
Who should buy this, and who should not
Buy it if you want an earhook fit with three tip sizes, you value a listing that actually names its codecs, and 6 to 8 hours per charge covers your training. Publishing AAC and SBC support and a latency figure puts this ahead of nearly every rival in its bracket on transparency, even when the figure itself is unremarkable.
Do not buy it expecting high resolution audio, because AAC and SBC are both lossy and no aptX or LDAC is present. Do not buy it for low latency gaming on a 100 millisecond figure. Do not treat “IP7” as a rating. Do not use it on a road bike. And check the ASIN carefully, because two different Catitru i25 listings exist with different published totals.
