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Rich Neodymium Drivers: With 13mm Neodymium drivers and XBass Technology, you'll enjoy deep, rich bass and balanced sound. 72hrs Playtime: Enjoy up to 72 hours of non-stop music and gaming with these long-lasting earbuds. These earbuds are a powerhouse of performance. ANC + ENC Quad Mics: Experience superior sound quality with Active Noise Cancellation and Environmental Noise Cancellation technology. Equipped with four microphones for crystal-clear voice capture and enhanced call quality. Touch Controls: Intuitive touch controls allow easy access to various functions without hassle. Dual Mode: Switch seamlessly between Music and Gaming modes to suit you
By Nu Republic
Open-box product · Final sale
Packaging was opened — the product is fully tested and verified working, and includes everything listed. Sold as-is at a discount; open-box items are not eligible for return or exchange.
No Sparexo warranty — any brand warranty is claimed at the brand's service centre with the GST invoice we give you.
₹10,000
In Stock — Only 2 left
Delivery in 4–10 working days
Anywhere in India · ₹59 delivery charge (₹99 with Cash on Delivery)
Cash on Delivery available
Pay ₹30 online to confirm, the rest in cash at your door. Your pincode is checked at checkout.
Quantity
1
Description
Open box — NNu Republic Cyberstud X4 Firefly TWS Earbuds with 72hr Playtime,13mm Driver, XBass, ANC + ENC Quad Mics, Hall Sensor, 40ms Low Latency, Dual Mode, BT V5.3 Rich Neodymium Drivers: With 13mm Neodymium drivers and XBass Technology, you'll enjoy deep, rich bass and balanced sound. 72hrs Playtime: Enjoy up to 72 hours of non-stop music and gaming with these long-lasting earbuds. These earbuds are a powerhouse of performance. ANC + ENC Quad Mics: Experience superior sound quality with Active Noise Cancellation and Environmental Noise Cancellation technology. Equipped with four microphones for crystal-clear voice capture and enhanced call quality. Touch Controls: Intuitive touch controls allow easy access to various functions without hassle. Dual Mode: Switch seamlessly between Music and Gaming modes to suit your need
Secure Packaging
Quality Checked
Questions about this open-box product
What is in the box?
This listing is for Rich Neodymium Drivers: With 13mm Neodymium drivers and XBass Technology, you'll enjoy deep, rich bass and balanced sound. 72hrs Playtime: Enjoy up to 72 hours of non-stop music and gaming with these long-lasting earbuds. These earbuds are a powerhouse of performance. ANC + ENC Quad Mics: Experience superior sound quality with Active Noise Cancellation and Environmental Noise Cancellation technology. Equipped with four microphones for crystal-clear voice capture and enhanced call quality. Touch Controls: Intuitive touch controls allow easy access to various functions without hassle. Dual Mode: Switch seamlessly between Music and Gaming modes to suit you. You get the product and its standard accessories, as listed on this page. If anything is missing, the description says so before you buy.
What does "open box" mean for this item?
The retail box has been opened — usually a customer return before use, an unboxing for inspection, or damaged outer packaging. The unit was fully tested and verified working before we listed it.
Can I return or exchange it?
No. Open-box items are sold at a discount as-is and are final sale, so the 7-day replacement window does not apply. That is why every unit is tested before it is listed — check the photos and the description before you buy.
Is there a warranty?
Sparexo does not give a warranty on open-box items — instead, every unit is thoroughly checked and tested before it ships. Every order comes with a GST invoice (emailed to you on delivery, and always in My Orders), so if the product is still under the manufacturer's warranty you can claim it at the brand's authorised service centre with that invoice. The brand decides the claim under its own warranty terms.
How long does delivery take?
Usually 4–10 working days anywhere in India: up to 3 working days for us to pack it and hand it to the courier, then 3–7 days on the way. You can follow it any time on the Track Order page.
Can I pay cash on delivery?
Yes, on orders of ₹499 or more, Cash on Delivery is available across India. You pay a ₹30 confirmation advance online when you place the order, and the balance to the courier at your door. Paying fully online instead is cheaper on shipping. A GST invoice is included either way.
Is this still in stock?
Stock is limited and the exact quantity is shown next to the buy button on this page. Each open-box unit is one of a kind — once it sells, it is gone, so if the page still lets you order, it is available.
