Parameter: Supports translation in over 137 languages, with bidirectional translation between each language. Compact and portable design, lightweight and easy to carry. Connects to mobile devices via Bluetooth for convenient use anytime, anywhere, as long as the phone has internet access. Supports 7 offline languages (note: offline function requires purchase within the app). Two-way real-time communication: Enables face-to-face conversation and helps overcome language barriers. Delivers accurate translation results instantly with fast response. Voice translation: Features intelligent voice recognition technology for seamless verbal communication. Converts spoken language into high-quality foreign text and provides voice output. Text translation: Supports text-to-text translation. Wide compatibility with most iOS and Android smartphones. Connectivity: Utilizes Bluetooth 4.2 for wireless connection to smartphones, allowing a wireless transmission range of up to 10 meters. Voice recognition range is up to 2 meters. Image translation: Select the desired language and capture text using your smartphone camera for precise optical translation. Optical resolution: 1200 dpi Built-in rechargeable battery: 3.7V 600mAh, low power consumption, USB charging. System requirements: Compatible with Android 7.0 and above, iOS 9.0 and above. Color: Black Material: Plastic Package includes: 1 x Translator 1 x Charging Cable Note: The actual product color may vary slightly due to lighting and screen display differences. Measurement tolerance is +/- 1-3 cm.