Lenovo 4XD1J77352

Overview

The Lenovo 4XD1J77352 is an analog in-ear headphone designed to deliver clear and balanced stereo sound through its 9 mm drivers, covering a frequency range from 100 Hz to 20 kHz. It connects via a standard 3.5 mm plug, making it compatible with a wide range of devices such as laptops, tablets, and smartphones. With 110 dB sensitivity and 32 Ohm impedance, it works efficiently with low-power mobile electronics, ensuring audio stays loud and clear even at lower volume levels.

This headset includes an in-line microphone that captures natural voice tones between 100 Hz and 10 kHz, ideal for conference calls, gaming chats, or casual conversations. The single-button control allows easy management of playback and calls without needing to access your device. Designed for comfort, it comes with three sizes of silicone ear tips to provide a secure fit and help reduce ambient noise during extended use.

Key features

• Standard 3.5 mm analog plug ensures compatibility with most audio devices without the need for adapters or pairing.
• 9 mm dynamic drivers deliver balanced stereo sound across a wide frequency range for clear music and voice playback.
• High sensitivity and moderate impedance allow efficient use with mobile devices, preserving battery life while maintaining volume.
• In-line microphone supports clear voice capture for calls and communication in various environments.
• Single-button control simplifies managing music playback and answering calls without interrupting your activity.
• Three silicone ear tip sizes provide a comfortable and secure fit, helping to block external noise for better listening focus.
• 1.2 meter cable length offers enough freedom of movement whether you are at a desk, commuting, or walking.
• Durable design performs reliably in temperature ranges from -10°C to 50°C, suitable for diverse climates and daily use.

Key specs

• Driver size: 9 mm dynamic
• Frequency response (headphones): 100 Hz to 20 kHz
• Frequency response (microphone): 100 Hz to 10 kHz
• Sensitivity: 110 dB
• Impedance: 32 Ohm
• Connector type: 3.5 mm analog plug
• Cable length: 1.2 meters
• Operating temperature range: -10°C to 50°C

Connectivity and compatibility

This headphone uses a standard 3.5 mm analog plug, making it compatible with a broad range of devices including laptops, tablets, smartphones, and other audio players that feature a headphone jack. Its plug-and-play design requires no additional drivers or pairing, which is convenient for users who want straightforward, reliable audio without setup hassles.

Comfort and usability

Lenovo includes three sizes of silicone ear tips to ensure a secure and comfortable fit for different ear shapes. This helps reduce outside noise and improves sound isolation, making it easier to focus on your audio whether you are in a busy office, on a flight, or commuting. The in-line microphone and single-button control enhance usability by allowing hands-free calls and easy music control, which is especially useful during multitasking or travel.

Who this is for

This headphone is well suited for students, professionals, and travelers who prefer a wired audio solution that is simple, reliable, and compatible with a wide range of devices. It fits well in environments where clear voice communication and balanced sound quality are important, such as remote work calls, online classes, or casual listening on the go. Its durable design and comfortable fit make it a practical choice for daily use across different settings and climates.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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