{"product_id":"usams-uj29-bluetooth-compatible-headphones-over-ear-3-eq-music-modes-wireless-headset","title":"USAMS UJ29 Bluetooth 5.3 Over-Ear Headphones – 3 EQ Modes, 40H, 400mAh","description":"\u003cp\u003eThe USAMS UJ29 are Bluetooth 5.3 over-ear headphones in PC, steel, and leather. Driver: 40mm. Sensitivity: 98±3dB. Impedance: 32Ω±15%. Frequency response: 20Hz–20kHz. Transmission power: 10dB. Working frequency: 2.405–2.480GHz. Connection range: within 10m. Battery: 400mAh. Playback time: approximately 40 hours. Charging time: approximately 2–3 hours at DC 5V\/330mA. Auto-shutdown: 10 minutes when idle. Size: 195×180×75mm. Weight: approximately 209g. Colour: not specified in source. Features: 3 EQ modes, foldable and rotatable design, protein leather earmuffs. No charging cable is included in the package. No certifications listed. Package: headset and English user manual. Curated by Aetheo.\u003c\/p\u003e\n\n\u003ch3\u003eWhy you'll like it\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3 EQ modes — switch between tuning presets to adjust the audio character\u003c\/li\u003e\n  \u003cli\u003e400mAh battery — approximately 40 hours of wireless playback per charge\u003c\/li\u003e\n  \u003cli\u003e40mm driver — 98±3dB sensitivity, 20Hz–20kHz frequency response\u003c\/li\u003e\n  \u003cli\u003eBluetooth 5.3 — stable connection within 10m\u003c\/li\u003e\n  \u003cli\u003eFoldable and rotatable design — compact for storage and transport\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDesigned for extended wireless over-ear listening\u003c\/h3\u003e\n\u003cp\u003eThe UJ29 connects via Bluetooth 5.3 to smartphones, tablets, and other Bluetooth-enabled devices within a connection range of up to 10m. The 40mm moving coil driver delivers audio with a sensitivity of 98±3dB and an impedance of 32Ω±15% across a 20Hz–20kHz frequency response. Three EQ modes allow the audio character to be adjusted to preference — the specific preset names and curves are not listed in source documentation. The 400mAh battery provides approximately 40 hours of playback; charging takes approximately 2–3 hours at DC 5V\/330mA. An auto-shutdown function activates after 10 minutes of idle operation. The foldable and rotatable design compacts the headphones for storage and travel. Protein leather earmuffs are fitted to the earcups. No charging cable is included in the package — the headphone charging connector type is not specified in source documentation; verify before purchasing a cable. No certifications are listed in source. Curated by Aetheo.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003ch4\u003e3 EQ modes — 40mm driver — 98±3dB sensitivity\u003c\/h4\u003e\n\u003cp\u003eThe UJ29 provides three EQ tuning modes, allowing the audio output character to be adjusted via the headphones' controls. The specific EQ preset names and frequency curves are not listed in source documentation. The 40mm moving coil driver delivers audio across a 20Hz–20kHz frequency response with a sensitivity rating of 98±3dB at 32Ω±15% impedance. The Bluetooth audio codec is not specified in source documentation — connection and codec quality depend on what both the headphones and source device negotiate at connection time. Transmission power is rated at 10dB with a working frequency of 2.405–2.480GHz.\u003c\/p\u003e\n\u003ch4\u003e400mAh battery — approximately 40H playback — auto-shutdown\u003c\/h4\u003e\n\u003cp\u003eThe 400mAh battery provides approximately 40 hours of continuous wireless playback per full charge. Charging takes approximately 2–3 hours at DC 5V\/330mA — a USB cable is required but not included in the package; the charging connector type on the headphones is not specified in source documentation. An auto-shutdown function activates after 10 minutes of idle operation to preserve battery. Actual playback time varies with volume level, codec, and usage conditions. Call time and standby time are not specified in source documentation.\u003c\/p\u003e\n\u003ch4\u003eFoldable and rotatable design — protein leather earmuffs — PC+steel+leather\u003c\/h4\u003e\n\u003cp\u003eThe UJ29 weighs approximately 209g and measures 195×180×75mm. The foldable and rotatable headband and earcup design allows the headphones to be compacted for storage and transport. Protein leather earmuffs are fitted to both earcups, providing cushioning during wear. Earcup pad dimensions are not specified in source. The over-ear form factor positions the earcups around rather than on top of the ear, with passive ambient noise reduction through the enclosure seal. Colour is not specified in source documentation. Bluetooth 5.3 provides stable pairing with backward compatibility to devices running earlier Bluetooth versions.\u003c\/p\u003e\n\n\u003ch3\u003eBest for\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEQ-adjustable listening — 3 modes for audio character preference\u003c\/li\u003e\n  \u003cli\u003eExtended wireless sessions — approximately 40H playback per charge\u003c\/li\u003e\n  \u003cli\u003eOver-ear passive isolation — protein leather earmuff cushioning\u003c\/li\u003e\n  \u003cli\u003ePortable use — foldable and rotatable design\u003c\/li\u003e\n  \u003cli\u003eBluetooth 5.3 wireless — stable connection within 10m\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × USAMS UJ29 Headset\u003c\/li\u003e\n  \u003cli\u003e1 × English User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility and setup\u003c\/h3\u003e\n\u003cp\u003eMaterial: PC + steel + leather. Bluetooth: 5.3. Connection range: within 10m. Working frequency: 2.405–2.480GHz. Transmission power: 10dB. Driver: 40mm. Sensitivity: 98±3dB. Impedance: 32Ω±15%. Frequency response: 20Hz–20kHz. Battery: 400mAh. Playback: approx. 40 hours. Charging: a\u003c\/p\u003e","brand":"USAMS","offers":[{"title":"Default Title","offer_id":55110949011790,"sku":"6812002373A","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0870\/2302\/6510\/files\/6812002373A-1.jpg?v=1762765292","url":"https:\/\/aetheo.com\/products\/usams-uj29-bluetooth-compatible-headphones-over-ear-3-eq-music-modes-wireless-headset","provider":"Aetheo","version":"1.0","type":"link"}