Cillso H97 Wireless Earbuds Review AAC and SBC Named 8 Hour Buds and 4 Hour Call Time

Description

Who this is for

The Cillso H97 is a compact in-ear true wireless pair built around a 14.2mm driver, an LED display case with a magnetic closure and a four microphone call system. Cillso aims it at sport use, with running and exercising in the recommended uses field, and the earbuds are quoted at 3.5 grams each with a 32 gram case. The published rating is 4.6 out of 5 across 670 ratings, and the listing places the model 725th in the earbud and in-ear headphone category. It first appeared in December 2024.

One catalog note before going further: a separate Cillso H97 listing exists under its own product code, and the two do not necessarily carry identical published figures despite the shared model designation. Check which one you are ordering.

Connection and codecs, both named

The specification gives Bluetooth 5.4 with a 15 meter range, and Cillso describes a magnetic Hall effect switch that triggers pairing when the case is opened. Bluetooth 5.4 improves connection stability, interference resistance and power efficiency. It does not improve sound quality on its own, whatever the surrounding marketing suggests.

The genuinely useful disclosure is in the second bullet, where Cillso names the codecs: AAC and SBC. That puts this listing ahead of most in the catalog, which name nothing at all. SBC is the universal baseline every Bluetooth device supports, and AAC is the codec Apple devices default to, so an iPhone or iPad owner gets the better of the two. Android support for AAC exists with varying implementation quality. Neither is a high resolution codec, and there is no aptX, aptX Adaptive or LDAC here, so no high resolution or lossless claim can be made about this product.

The compatibility claims disagree

Three different minimum requirements appear on this page. The Compatible Devices field says iOS 9.0 or Android 5.0 or above with Bluetooth 4.0 or later. The final bullet says Android 4.4 or iOS 8.0 and above with Bluetooth 4.0 or above. Those are not the same floors. In practice any phone from the last decade will pair, so the disagreement matters less as a purchasing question than as a signal about how carefully the rest of the page was populated.

Battery, and one disclosure most listings omit

The battery figures here agree with each other, which is rarer than it should be. The bullet states up to 8 hours of playback on a single charge with the case providing an additional 32 hours, and the Battery Life field says 40 hours while the Carrying Case Battery Average Life field says 32. Eight plus thirty two is forty. Everything lines up.

More valuable is a parenthetical in the same bullet that most manufacturers would leave out: when used for calls, the earbuds provide up to 4 hours. That is half the music figure, and it is a real and honest disclosure. Voice calls keep the microphones and the transmit radio active continuously, which costs considerably more power than playback alone, so any earbud runs down faster on calls than on music. Cillso publishing the number instead of hiding it deserves credit, and it is the figure to plan around if you spend your day on the phone.

Charging figures are less consistent. The Charging Time field says 1.5 hours and the bullet says the case fully charges in 1.5 hours, while the Carrying Case Battery Charging Time field says 2 hours. The case holds 300 mAh and charges over USB-C.

Fit, seal, controls and an IP code that is not valid

The water claim does not hold up. The title says IP7 Waterproof and the fourth bullet says IP7 nano-coating technology. IP7 is not a valid rating. The IP standard requires two positions after the letters, the first for solid particle ingress and the second for water, so a water only code is correctly written IPX7. IP7 alone corresponds to no tested standard. The Water Resistance Level field adds only the adjective Waterproof.

Cillso’s own description of the protection also argues against an immersion reading. The bullet says the coating protects the earbuds from daily splashes, sweat and rain, which is splash level language. Treat these as sweat and rain resistant, do not immerse them, and understand that no valid IP rating is published here. As always, no IP code covers seawater, chlorinated pool water or pressurized water, and coatings and seals degrade with age and heat.

Fit information is incomplete in a specific way. The Included Components field reads only Black, which is the color and not a component list, so nothing on this listing states how many ear tip sizes ship in the box. Tip count decides whether the seal works, and the seal decides how much of the promised bass you actually hear, so its absence on a sealed in-ear product is a real gap. The driver is a 14.2mm unit, impedance is 32 ohms, and sensitivity is given as 110 with no unit attached.

The noise cancelling claim

The title says noise cancelling and the second bullet says ENC noise cancelling technology filters out environmental noise for clear calls. ENC is microphone side processing. It cleans up the signal you transmit so callers hear less of your surroundings, and it does nothing to quiet the world for you while you are listening. There is no active noise cancellation on this product and no transparency mode, and any blocking you experience comes from the ear tip seal alone.

Fields to ignore

Several entries on this listing describe nothing real. Product Dimensions reads 0.39 by 0.39 by 0.39 inches, which is a one centimeter cube and could not contain a charging case and two earbuds. The Batteries field reads two A batteries required and included, which describes disposable cells rather than a rechargeable pack. Number of USB 2 Ports reads 1, a specification inherited from computer hardware. The Frequency Response field reads 20 KHz as a single value, which is not a frequency response. The Item Weight of 2 grams conflicts with the bullet’s 3.5 grams per earbud.

What else to consider

This sits in the most crowded part of the catalog. Direct comparisons at the same level include the Nerunsa 1 with a Bluetooth 5.4 radio, the AOSRAU H69 and the Szwdo T20 which claims active cancellation. Browse the true wireless earbud section and the wider in-ear headphone listings for the rest of the field.

Who should buy it, who should not

Buy it if you want a light pair with a large driver, named codecs, 8 hours per charge and a manufacturer honest enough to publish its call time separately. Skip it if you were buying for active noise cancellation, because this is call side processing. Skip it if you need a valid water rating, because IP7 is not one, and confirm the ear tip count before ordering, because the components field on this listing contains a color rather than a list.

Additional information