Material: Plastic Weight [grams]: 130 Battery capacity [mAh]: 35 Battery life up to [hours]: 5-7 Built-in voice assistant: Yes Max wireless range [meters]: 10m-20m NFC technology: No Category: Headphones and Headphone Driver Quantity: 2 Charging Method: Charging Case Driver Diameter: 10mm THD: 1% Impedance Range: Up to 32 Bluetooth Version: 5.3 Package List: User Manual, Charging Case, Charging Cable Features: Waterproof, with Mic Code Decoder: AAC, sbc With Microphone: Yes Whether Wireless: Yes Support APP: No Support Memory Card: No Waterproof: Yes Resistance: 32 Cable Length: 0m Frequency Response Range: 20 - 20000Hz Sensitivity: 105dB Plug Type: No Function: Yes For mobile phones, office use, study use Active Noise Cancellation: No Volume Control: Yes Control Button: No Sound Principle: Dynamic Wireless Type: Bluetooth Connector: Type c Communication: Wireless Style: In-Ear Certification: CE, FCC, RoHS: Mainland China: LIFEBEE Feature 1: Wireless Bluetooth Headset Feature 2: Wireless Headset Feature 3: Headset Bluetooth Feature 4: Bluetooth Headset Feature 5: Bluetooth Headset Feature 6: Wireless Bluetooth Headset Feature 7: Bluetooth Wireless Headset Feature 8: Bluetooth Headset Feature 9: Free Shipping on Wireless Headphones Feature 10: High Quality Wireless Headphones Feature 11: Bluetooth Earbuds