T G TG663 Portable Colorful LED Wireless Bluetooth Speaker Outdoor Subwoofer Features: 1. Using Bluetooth 5.3 wireless technology, it supports voice calls and one-click hands-free answering. 2. Support TWS dual-speaker series connection. You can use Bluetooth to connect two speakers in series. The super bass will give you an immersive effect. 3. Equipped with LED breathing light, multiple changing modes, full of atmosphere. 4. Built-in large-capacity lithium battery, long battery life, you can enjoy listening to it. 5. Small size and large capacity, easy to carry, suitable for outings. 6. Supports multiple platforms and devices, multiple connection methods, easy and portable. Parameters: 1. Bluetooth specification: V5.3 2. Audio noise ratio: greater than or equal to 95dB 3. Transmission range: 10M 4. Battery capacity: 1500mAh 5. Built-in voltage: 3.7V 6. Play time: about 2H 7. Speaker specifications: 52mm x 2 8. Speaker power: 4 ohm8W x 2 9. Frequency response: 120Hz-18KHz 10. Charging input: 5V1000mA 11. Product size: 99x99x201mm 12. Product weight: about 632G Packaging list: Bluetooth speaker x 1 USB cable x 1 User manual x 1