For Apple Bluetooth Earphones AirPods Adaptor Connector Bluetooth Transmitter 1. Charging interface: Type-C 2. Battery capacity: 500mAh 3. Applicable models: Airpods or other wireless bluetooth earphones 4. Battery life: AirFly Duo AirFly Gen 2 about 20h, AirFly Pro about 16h 5. Weight: about 16 g 6. Size: AirFly Duo AirFly Pro about 5.7 x 2.55 x 1.1 cm, AirFly Gen 2 about 10.8 x 2.54 x 0.95 cm 7. Packing list: connector x 1, charging cable x 1, storage bag x 1 Features: 1. Wireless bluetooth headset connector, stable connection, plug and play, compact and portable 2. Simple control, plug and play, key pairing, long-lasting battery life, not afraid of long-distance travel 3. Efficient and quick connection, one open and connect, simple design, beautiful and practical, can be connected to two different pairs of headphones 4. Wireless connection, so that the wired jack change out of the wireless possibility, more portable immersive audio-visual experience, enjoy lossless sound quality 5. Wireless headphones can be used in places where there is only a headphone jack, such as cars, boats, treadmills, TVs, computers and game consoles, etc.