*Oversized Sensitive Touchpad for Smooth Control
Equipped with a spacious ultra-responsive touchpad on the bottom folding panel. It supports full multi-touch gestures to deliver unrestricted, lag-free cursor operation.
*Ergonomic 4-Fold Structure with Leather Wrapped Edges
Adopts scientific four-panel folding mechanism for compact storage after folding. Exposed folding edges are covered with soft leather material to boost hand touch comfort.
*Full-Function Layout with Independent Numeric Zone
Comes with a complete integrated layout combining numeric keypad and touchpad. No function loss after folding, meeting heavy typing and data entry daily demands.
*Multi-Device Pairing & Cross-Platform Compatibility
Supports multi-channel Bluetooth switching to quickly connect multiple electronic devices. Fully compatible with Windows, iOS, Android and macOS mainstream operating systems.
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B055 4-Panel Foldable Wireless Keyboard with Oversized Responsive Touchpad
4-Panel Foldable Wireless Keyboard with Oversized Multi-Touch Touchpad & Complete Layout Built-In Independent Numeric Zone, Soft Leather Wrapped Fold Edges, Multi-Channel Bluetooth Switching for Smartphones, Tablets and Laptop Gadgets
| Dimensions | 304.1 × 216 × 6.1 mm (keyboard open), 152.4 × 100 × 19.8 mm (keyboard folded) |
|---|---|
| Number of Keys | 81 |
| Keyboard Weight | 275 g (unit only) |
| Key Pitch | 2.8 mm (horizontal), 3.0 mm (vertical) (standard keys) |
| Operating Voltage | 3.3–4.2 V |
| Key Operating Current | Less than 4.0 mA |
| Touchpad Operating Current | 13 mA–15 mA |
| Standby Current | Less than 1.0 mA |
| Sleep Time | 10 minutes |
| Sleep Current | 27 µA |
| Operating Range | 8–10 meters (unobstructed) |
| Lithium Battery | 140 mAh |
| Dimensions | 304.1 × 216 × 6.1 mm (keyboard open), 152.4 × 100 × 19.8 mm (keyboard folded) |
|---|---|
| Number of Keys | 81 |
| Keyboard Weight | 275 g (unit only) |
| Key Pitch | 2.8 mm (horizontal), 3.0 mm (vertical) (standard keys) |
| Operating Voltage | 3.3–4.2 V |
| Key Operating Current | Less than 4.0 mA |
| Touchpad Operating Current | 13 mA–15 mA |
| Standby Current | Less than 1.0 mA |
| Sleep Time | 10 minutes |
| Sleep Current | 27 µA |
| Operating Range | 8–10 meters (unobstructed) |
| Lithium Battery | 140 mAh |
Company Overview
BATTLELF is an exclusive brand under Shenzhen DZH Industrial Co., Ltd. DZH was established in 2010, specializing in the research, development, and manufacturing of scissor-switch keyboards and laptop/tablet peripherals.Bases in Shenzhen and Huizhou covering about 40,000 square meters, DZH has developed into a well-established manufacturer serving global OEM/ODM customers with efficient product development, stable production, and reliable quality control.BATTLELF provides OEM/ODM support from product design and development to mass production. With integrated capabilities in tooling, manufacturing, and quality control, we help customers turn ideas into reliable products with efficient project execution.
FAQ
What devices & systems can these foldable Bluetooth keyboards connect to?
All our keyboards support Windows, macOS, Android and iOS systems. They pair smoothly with smartphones, tablets, laptops via stable Bluetooth connection. Multiple models support one-click multi-device switching to quickly swap between 2-3 paired gadgets. Contact us for details on connecting to other systems.
How far can the Bluetooth signal reach? Will it lag during use?
Optimized Bluetooth modules deliver steady transmission within 8–10 meters without signal dropouts. The sensitive touchpad and scissor-switch keys bring lag-free typing and cursor control for daily office tasks.
What's the advantage of your scissor-switch key structure?
We adopt optimized silent scissor-foot mechanism for all our keyboards. It greatly reduces typing noise to avoid disturbing surrounding people, making it suitable for libraries, offices and public quiet spaces. Meanwhile, the structure brings soft, consistent keystroke feedback and long service life with durable rebound performance.
What's the advantage of your self-developed folding hinge?
Our exclusive proprietary hinge offers silky smooth fold and unfold hand feel. It locks the keyboard frame firmly for steady, comfortable typing feedback, and maintains consistent tightness for long-lasting daily use.
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