The biggest case in the F9 range: 3,600mAh, an LED percentage, wireless charging for the case and spare power for a phone. Fingerprint-touch buds on Bluetooth 5.0 ride inside.
Friday night, the bag is packed and the charger is still on the desk at home. That is the weekend the Huiye F9-5 was built for. Its case holds 3,600mAh, the largest battery in the F9 range, and the maker quotes up to 150 hours of cycle time before it needs a wall socket.
Treat that as a ceiling. It assumes the case is doing one job: refilling the buds. The moment it also tops up your phone, the reserve drains faster, so plan by the job rather than the headline number.
The LED percentage keeps the guessing out of it. Drop the buds in and the reserve appears as a number, so you see the reserve drop through Saturday and Sunday instead of finding it empty on Monday.
A battery this size has a cost: bulk. A 3,600mAh case is chunkier than a slim F9 shell and sits better in a gym bag, a daypack or a jacket than in running shorts. If the case lives in your front jeans pocket every day, a slimmer pair suits you better.
The F9 charging guide sets the Huiye's case against every other F9 battery.
| Spec | Value |
|---|---|
| Model | F9-5 |
| Bluetooth | 5.0 |
| Stated range | Up to 196 ft with no walls in the way (maker claim) |
| Case battery | 3,600mAh |
| Total cycle time | Up to 150 hours (maker figure) |
| Battery display | LED percentage on the case |
| Case charging | USB-C cable or wireless charging pad |
| Charging port | USB Type-C |
| Phone charging | Emergency top-up for other devices |
| Controls | Touch on both buds: volume, tracks, calls, voice assistant |
| Touch type | Fingerprint touch panel |
| Single-bud use | Yes, calls and music on one bud |
| Driver | Dynamic |
| Noise cancelling | None |
| Water resistance | Sweat and rain resistant; no IPX number stated |
| Case material | Plastic |
| Compatible with | Bluetooth phones, iPhone and Android |
| Colour | Black |
Few F9 cases charge without a cable. The Huiye F9-5 does: set the case on a wireless charging pad and it refills itself, no USB-C lead needed. If a pad already lives on your bedside table or desk, that is one less cable to hunt for.
The USB Type-C port stays for the times a pad is not around. It is also the faster route for a big battery: pad charging turns some energy into heat, and a 3,600mAh cell takes a while to fill either way.
| Route | Best moment |
|---|---|
| Wireless pad | Overnight on the nightstand, no rush |
| USB-C cable | Quick top-up before heading out |
| Laptop USB port | At the desk, slow but steady |
A few habits keep the case charging reliably:
The percentage readout doubles as a charging check. If the number climbs, the pad and the coil have found each other. If it holds still after a few minutes, nudge the case and watch again.
The same pad trick shows up on the LED-case lookalikes such as the TAGRY X08, but inside the F9 family it is rare. Paired with 3,600mAh, it makes the Huiye the low-effort pick for anyone who hates cables. Drop it on the pad after the evening run, pick it up full the next morning.
Each Huiye bud works on its own. Leave one in the case and the other handles calls and music by itself, which suits a drive where one ear needs to stay on the road. Put both in for the trail and you get full stereo again.
A fingerprint panel sits on each bud, so your phone never leaves your pocket:
The exact tap count for each action is printed on the card in the box, so keep it until the moves are second nature. The usual layout, and the fix for voice prompts in the wrong language, sit in the F9 manual guide.
The buds run a Bluetooth 5.0 chip. The maker talks about 196 feet with no walls; indoors, with your head between bud and phone, plan on one room. That is plenty for a phone in a running belt or a jacket.
If one bud goes quiet, the fix is usually a reset. The F9 reset guide walks through the long press that wipes both buds and links them again.
The F9-5 name turns up on several cases. The Huiye has the biggest battery and the only wireless charging of the bunch. Rivals trade some capacity for a stated IPX7 rating or a smaller shell.
| Huiye F9-5 | MDNS BTH-F9-5 | Voltstech F9-5 | |
|---|---|---|---|
| Case | 3,600mAh | 2,000mAh | 1,500mAh |
| Wireless case charging | Yes | No | No |
| Water | Sweat and rain, no IPX | IPX7 | IPX7 |
| Bluetooth | 5.0 | 5.0 | 5.1 |
| Readout | LED percentage | LED | LED, buds and case |
The MDNS BTH-F9-5 is the rain-run choice: MDNS says its buds can sit submerged for half an hour and keep working. The Voltstech F9-5 packs a smaller cell, keeps a USB output for your phone and adds a silicone flap over its ports.
Runtime is where the Huiye pulls ahead. A 3,600mAh cell holds nearly twice the reserve of a 2,000mAh case and well over twice a 1,500mAh one. For a festival, a hiking trip or a week of commutes with a phone that always runs low, that gap decides it.
Pick the Huiye if:
Look elsewhere if:
The F9-5 versions compared brings in the 5C, Pro and Mini lines too.
Yes. Set the case on a wireless charging pad and it refills itself; the USB-C port is there for faster cable charging.
Roughly half a modern phone battery, depending on the phone's capacity and conversion losses. Every phone top-up comes out of the buds' reserve.
Sweat and rain are covered by the maker's description, but no IPX number is stated. For rain runs, an IPX7 pair like the MDNS BTH-F9-5 is safer.
Bluetooth 5.0. It pairs with iPhone, Android and any other Bluetooth phone.
Yes. Either bud handles calls and music alone; the second can charge meanwhile.