1. Bluetooth transmission distance: about 10m 2. Speaker: 40mm 3. Frequency response: 20. Ηz-20KΗz 4. Bluetooth version: 5.35. Charging time: about 2.5h 6. Playback time: about 30h 7. Battery capacity: 400m. Ah 8. Audio interface: AUX9. Water resistance: IPX5. Features:1. Folding storage, more flexible to carry on the go 2. sound details, high-definition audio decoding 3. Skin-friendly soft, lightweight and breathable, more comfortable to wear 4. Immersive sound, high-definition voice call effect, clear vocal effect 5. Aviation-grade metal, powerful shocking bass, inhibit excess low-frequency acoustic sound resistance design 6. Bluetooth/AUX audio playback, wireless and wired switch at any time 7. Wear retractable folding, skin-friendly and comfortable, no sense of pressure, according to the head shape, adjustable 8. Bluetooth can be connected, mobile phone/computer/tablet computer/TV universal
