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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-03 · 7 min read · Independent comparison
• RCA Earbuds — biggest strength: earhook fit with 7.8 g per bud, IPX5 sweat and rain resistance, and up to 48 hours of total playtime with the charging case.
• RCA Earbuds — biggest trade-off: passive noise cancellation only, so it muffles sound by sealing your ear rather than actively cancelling anything, and the case is a chunky 159 g.
• SOOMFON Dual Antenna — biggest strength: dual-antenna Bluetooth 5.3 with a 15 m transmitter range and 20–30 m receiver range, plus optical, 3.5 mm AUX and RCA inputs.
• SOOMFON Dual Antenna — biggest trade-off: it makes no sound of its own, it cannot transmit and receive at the same time, and it is unsuitable for live instruments or karaoke because of audio delay.
• Who each pick is for: RCA Earbuds for runners, gym-goers and commuters; SOOMFON Dual Antenna for anyone with a non-Bluetooth TV, older stereo or home theater system.
The RCA Earbuds are built around one idea: don't fall out. The hook-shaped earpieces wrap over the ear, and each bud weighs just 7.8 g, so the weight you feel on a long run is minimal. RCA pairs that with an IPX5 rating, which covers sweat, splashes and rain — the realistic threats to a pair of earbuds on a trail or a treadmill. You also get three sizes of silicone ear tips, which matters more than people expect, because a hook only helps if the tip actually seals your ear canal.
On the audio side, RCA lists a 13 mm dynamic driver, 16 ohm impedance, a frequency response up to 50 KHz and 16 ms latency. That last figure is the one I'd point a gamer or video watcher to: 16 ms is low enough that lip-sync should feel natural rather than delayed. Bluetooth 5.3 with a 10 m range handles the normal phone-in-pocket scenario. Battery is 6 hours per charge and up to 48 hours total with the case, with a 1.5-hour charge time and a 420 mAh case battery. The case itself is fairly large for a pocket — 12.9 × 8.05 × 4.44 cm and 159 g — so this is more of a toss-it-in-a-gym-bag product than a coins-pocket one.
Buy these if you want a secure, sweat-resistant sport pair with touch controls and ENC microphones for calls, and you're fine with a case that takes up space. Skip them if you want active noise cancellation for flights or a crowded train — RCA specifies passive noise cancellation, which is a seal, not a chip. Also note the model listing is a black sport model with pink earpieces and a black case; if you want a subdued all-black look, that's worth checking before you commit.
The SOOMFON Dual Antenna is not a headphone. It's a Bluetooth 5.3 transmitter and receiver in one box, and that distinction is the whole reason it exists. Its job is to take audio out of a device that has no Bluetooth — a TV, a PC, an MP3 player, an older stereo — and push it wirelessly to headphones or speakers you already own. It accepts optical TOSLINK, 3.5 mm AUX and RCA input, and it outputs stereo to a headphone or a speaker system. The package includes the cables to do it: a 3.5 mm-to-RCA cable, a 3.5 mm audio cable, an optical cable and a USB-C power cable.
The dual-antenna design is the headline. SOOMFON rates range at up to 15 m in transmitter mode and 20–30 m in receiver mode, and the second antenna is there to keep the signal intact when walls, Wi-Fi routers and other wireless gear get in the way. The practical payoff is fewer dropouts when you walk from the couch to the kitchen mid-show. In transmitter mode it can feed two headphones or speakers at once, which is the feature that makes it genuinely useful for couples or families watching together — one person can use headphones while another uses a soundbar, or two people can each use their own headset. Once paired, the last two devices reconnect automatically when they come back in range.
Buy it if you have a TV or hi-fi that sounds fine but has no Bluetooth, and you want to add wireless headphones without replacing the TV. Also buy it if you want to stream from your phone to a legacy stereo — that's the receiver direction, where the 20–30 m range applies. Skip it if you want a personal listening device, if you need simultaneous transmit and receive (SOOMFON states that isn't supported), or if you're a musician or karaoke singer — the listing explicitly says it isn't suitable for live music or instruments. Also plan for setup: in transmitter mode you should use the optical cable, and you'll likely need to switch your TV's digital audio output to PCM. Two-device playback at the same time only works in transmitter mode, not receiver mode.
Side-by-Side: Which Should You Choose?
• Best for running, gym and sweaty workouts → RCA Earbuds. Earhooks, IPX5, 7.8 g per bud. The SOOMFON doesn't go outside.
• Best for watching TV late without waking anyone → SOOMFON Dual Antenna. It feeds your own Bluetooth headphones from a non-Bluetooth TV.
• Best for two people sharing one audio source → SOOMFON Dual Antenna. It pairs with two headphones or speakers at once in transmitter mode.
• Best for stable range through walls → SOOMFON Dual Antenna. Dual antennas, 15 m in TX and 20–30 m in RX.
• Best for calls on the move → RCA Earbuds. Touch controls plus ENC microphones for clearer voice pickup.
• Best for reviving an old stereo or home theater system → SOOMFON Dual Antenna. Optical, AUX and RCA inputs plus the cables in the box.
• Best for low-latency listening while you move → RCA Earbuds. 16 ms audio latency on Bluetooth 5.3.
• Best for quiet focus in a noisy room → neither, strictly speaking. RCA offers passive isolation only, and the SOOMFON makes no sound at all.
If I had to pick one, I'd pick based on the job, not the brand. For a person who moves — runs, lifts, cycles, commutes — I'd buy the RCA Earbuds: the earhook fit, IPX5 rating, 48-hour total playtime and 16 ms latency are exactly the specs that matter when you're sweating and your phone is in an armband. For a person whose problem is a silent-in-Bluetooth living room, I'd buy the SOOMFON Dual Antenna, because nothing about the RCA earbuds solves that problem and the SOOMFON's optical/AUX/RCA inputs plus dual-antenna range do. If you want both — headphones for the trail and wireless TV audio at home — these aren't competitors at all, and buying both makes more sense than forcing one to do the other's job.
Yes, that's their design brief. They use an over-ear hook shape, weigh 7.8 g per bud, carry an IPX5 sweat and rain resistance rating, and include three ear tip sizes for a secure seal. The 6-hour-per-charge battery covers most sessions.
Can the SOOMFON Dual Antenna work with my phone as well as my TV?
Yes, in both directions. As a transmitter it takes audio from a TV, PC or MP3 player over optical, AUX or RCA and sends it to Bluetooth headphones or speakers. As a receiver it takes Bluetooth audio from your phone and sends it to a wired stereo or home theater system.
No. RCA Earbuds are worn headphones that produce sound. SOOMFON Dual Antenna is an adapter that moves audio between wired and Bluetooth devices and produces no sound itself. The only real overlap is the Bluetooth 5.3 label.
That depends entirely on what you're missing. If you need secure sport audio, the RCA earbuds are the only one of the two that can deliver it. If you need wireless TV audio without replacing your TV, the SOOMFON is the only one that can. Check the current price on Amazon for each and compare against what you'd otherwise spend on a replacement TV or a new pair of headphones.
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