Bluetooth version: 5.0 . Material: plastic + metal . Battery capacity: 300mAh . Charging time: 2-3H . Talking time: 18H . Music playing time: 18H . Standby time: 300H . Speaker impedance: 32 ohms . Speaker power: 10mW . 40MM drive unit, strong bass effect . Retractable head beam, adapt to various head shapes, comfortable and stable to wear . High-recognition button control, simple operation . Rotation design, self-adaptive adjustment of rotation, can rotate and lay flat, easy to carry . High imitation protein lint, soft, skin-friendly and comfortable, making listening to songs more comfortable . Size: 199×159.85×77.35mm . Weight: 217g
