Model: k505
Bluetooth version: 5.3
Earplug battery: 40mAh
Charging case battery: 260mAh
Charging time: 1-2 hours for charging
Voltage: 3.7V
Input voltage: 5V
Transport packaging: Gift box packaging
Trademark: AiL
Origin: Shenzhen, China
HS code: 8517629900
Production capacity: 500000 pieces per month
The metal-cased Bluetooth earphones are engineered with a sleek aluminum shell that enhances durability and provides a refined appearance. The metal design resists wear, ensuring long-term use in both professional and consumer applications.
With dual ear stereo technology, users enjoy immersive and balanced sound. Every tone remains crisp, from deep bass to clear highs. Whether for gaming, business calls, or music, the earphones deliver a professional-grade listening experience.
The latest Bluetooth 5.3 ensures a stable and fast connection with low latency. It supports a wide range of devices, including smartphones, tablets, and laptops. The automatic pairing feature simplifies the user experience, saving time during setup.
Each earplug includes a 40mAh battery, while the 260mAh charging case extends playback hours. The system recharges in just 1–2 hours with a 5V input, allowing consistent use throughout the day. It is ideal for long travel, office, or warehouse use.
AIL offers OEM customization and private labeling for global brands. With a monthly capacity of 500,000 units, we support large-scale manufacturing with strict quality control. Each product is securely packaged in gift boxes, suitable for retail or corporate distribution.
As a trusted Bluetooth earphones manufacturer in Shenzhen, AIL delivers stable quality, reliable supply, and global export experience. Our team supports customization requests for colors, packaging, and branding, ensuring every product fits your market needs.

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