{"indrexa_id":"4a2d38c6-0f20-5a33-bb96-9d6c9aab0f6b","category_id":"headphones","product_title":"JBL Tune 520BT - Wireless On-Ear Headphones, Up to 57H Battery Life and Speed Charge, Lightweight, Comfortable and Foldable Design, Hands-Free Calls with Voice Aware (Purple)","brand":"JBL","upc":"050036394956","asin":"B0CQ1HP3RX","semantic_description":"The JBL Tune 520BT is a budget-tier ($38.95) wireless on-ear headphone featuring Bluetooth 5.3, 30-ohm impedance, and an exceptional 57-hour battery life with USB-C fast charging (3 hours from a 5-minute charge). It includes a foldable design, hands-free calling with Voice Aware transparency mode, and EQ customization via the JBL Headphones App, making it well-suited for everyday commuting, travel, and casual listening. Comfort and fit are notably inconsistent across users, with some reporting head squeeze or ear pain during extended wear.","best_for_summary":"Best for budget-conscious casual listeners and commuters who want long battery life, solid sound quality, and everyday portability without spending more than $40.","not_ideal_for":["Users who need active noise cancellation","People with larger heads or sensitivity to tight-fitting headphones","Audiophiles or studio use requiring detailed audio specs and lossless audio support"],"use_case_tags":["commuting","travel","budget-friendly","calls","home"],"buyer_profile_tags":["budget-conscious","casual-listener","commuter"],"manufacturer_description":"The JBL Tune 520BT headphones stream powerful JBL Pure Bass sound for up to 57 hours, thanks to the latest 5.3 BT technology. Quickly rechargeable, they sit comfortably on your head even after hours of listening pleasure. With a flat-folding design, the JBL Tune 520BT easily fits in your backpack to follow you everywhere.","feature_bullets":["NOTE: If headset is too tight we suggest placing them over a ball or something of similar size/shape. Leave undisturbed for at least 24 hours. Repeat if necessary. Please also try length adjustments of either earpiece until both sides best fit you.","JBL Pure Bass Sound: The JBL Tune 520BT features the renowned JBL Pure Bass sound, the same technolgy that powers the most famous venues all around the world.","Wireless Bluetooth 5.3 technology: Wirelessly stream high-quality sound from your smartphone without messy cords with the help of the latest Bluetooth technology.","Customize your listening experience: Download the free JBL Headphones App to tailor the sound to your taste with the EQ. Voice prompts in your desired language guide you through the Tune 520BT features.","Up to 57H battery life and speed charge: For long-lasting fun, listen wirelessly for up to 57 hours and recharge the battery in as little as 2 hours with the convenient Type-C USB cable. A quick 5-minute recharge gives you 3 additional hours of music.","Hands-free calls with Voice Aware: Easily control your sound and manage your calls from your headphones with the convenient buttons on the ear-cup. Hear your voice while talking, with the help of Voice Aware."],"spec_table":[{"field":"Brand","value":"JBL"},{"field":"Color","value":"Purple"},{"field":"Ear Placement","value":"On Ear"},{"field":"Form Factor","value":"On Ear"},{"field":"Impedance","value":"30 Ohms"}],"bought_in_past_month":"3K+","variants":["B0CQ1HP3RX","B0C1HGKNG7","B0CGMV5TMR","B0CBL1TQMP"],"shipping_amount":"FREE","manufacturer":"JBL","climate_pledge_friendly":false,"category_specs":{"is_foldable":true,"is_wireless":true,"is_open_back":false,"impedance_ohms":30,"has_wired_option":false,"has_transparency_mode":true,"has_multipoint_connection":false,"has_active_noise_cancellation":false},"review_intelligence":{"total_reviews":14523,"average_rating":4.6,"rating_distribution":{"1_star":"3%","2_star":"1%","3_star":"4%","4_star":"9%","5_star":"83%"},"top_positive_themes":["Sound quality (736)","Quality (495)","Value for money (390)","Battery life (298)","Functionality (228)","Connectivity (212)"],"top_negative_themes":[],"top_mixed_themes":["Comfort (344)","Fit (239)"],"review_summary":"Customers find these headphones have amazing sound quality that's crystal clear, and appreciate their incredible battery life that recharges quickly. Moreover, they work well and offer good value for money, with easy Bluetooth connectivity and quick pairing capabilities. However, comfort and fit receive mixed feedback - while some find them comfortable on the ears, others report they hurt them, and while some say they fit well, others mention they squeeze their heads.","reliability_score":"mixed"},"best_offer":{"retailer":"amazon","retailer_id":"B0CQ1HP3RX","price_usd":54.99,"original_price_usd":59.95,"affiliate_url":"https://www.indrexa.com/go/jbl-tune-520bt-4a2d38c6/amazon","in_stock":true,"shipping":{"free_shipping_available":null,"free_shipping_note":null,"min_order_for_free_shipping":null},"last_updated":"2026-06-03T20:04:52.021051+00:00"},"all_offers":[{"retailer":"amazon","retailer_id":"B0CQ1HP3RX","price_usd":54.99,"original_price_usd":59.95,"affiliate_url":"https://www.indrexa.com/go/jbl-tune-520bt-4a2d38c6/amazon","in_stock":true,"shipping":{"free_shipping_available":null,"free_shipping_note":null,"min_order_for_free_shipping":null},"last_updated":"2026-06-03T20:04:52.021051+00:00"}],"_llm_hints":{"best_offer_logic":"lowest price among in-stock offers","out_of_stock_offers_included":true,"use_affiliate_url":"always use affiliate_url field, never construct retailer URLs manually","shipping_note":"shipping costs are estimates only — final cost depends on user location and membership status","null_fields":"null spec or review fields mean data was unavailable from source — do not infer values","manufacturer_description":"brand's own product description — official copy from Amazon listing","feature_bullets":"array of manufacturer's bullet-point features from Amazon listing","spec_table":"raw structured spec table from Amazon — category-specific technical specs","bought_in_past_month":"Amazon demand signal — number of units sold in past 30 days","variants":"array of ASINs for color/size variants of this product","shipping_amount":"shipping cost signal — FREE indicates free shipping available","climate_pledge_friendly":"Amazon Climate Pledge Friendly badge — sustainability certification","data_freshness":"checked_at timestamp from most recent price record","best_offer_null_means":"all known offers are currently out of stock — check all_offers for availability"},"json_ld":{"@context":"https://schema.org","@type":"Product","name":"JBL Tune 520BT - Wireless On-Ear Headphones, Up to 57H Battery Life and Speed Charge, Lightweight, Comfortable and Foldable Design, Hands-Free Calls with Voice Aware (Purple)","brand":{"@type":"Brand","name":"JBL"},"description":"The JBL Tune 520BT is a budget-tier ($38.95) wireless on-ear headphone featuring Bluetooth 5.3, 30-ohm impedance, and an exceptional 57-hour battery life with USB-C fast charging (3 hours from a 5-minute charge). It includes a foldable design, hands-free calling with Voice Aware transparency mode, and EQ customization via the JBL Headphones App, making it well-suited for everyday commuting, travel, and casual listening. Comfort and fit are notably inconsistent across users, with some reporting head squeeze or ear pain during extended wear.","sku":"4a2d38c6-0f20-5a33-bb96-9d6c9aab0f6b","identifier":[{"@type":"PropertyValue","name":"asin","value":"B0CQ1HP3RX"},{"@type":"PropertyValue","name":"indrexa_id","value":"4a2d38c6-0f20-5a33-bb96-9d6c9aab0f6b"}],"offers":[{"@type":"Offer","url":"https://www.indrexa.com/go/jbl-tune-520bt-4a2d38c6/amazon","priceCurrency":"USD","price":54.99,"availability":"https://schema.org/InStock","seller":{"@type":"Organization","name":"Amazon"}}],"additionalProperty":[],"gtin":"050036394956","aggregateRating":{"@type":"AggregateRating","ratingValue":4.6,"reviewCount":14523}}}