T&G TG187 Portable Waterproof Wireless Bass Surround Bluetooth Speaker with Shoulder Strap, Support FM TF Card Features: 1. Adopt advanced Bluetooth audio decoding chip to support the connection of all Bluetooth devices; 2. Support fm radio, you can search for radio stations directly in the listening area; 3. The tone is smooth, clear, dynamic, with different levels; 4. Directly read TF card and U disk; 5. The Bluetooth receiving distance can be up to 10 meters； 6. Support audio input line and provide computer speaker function. Can be directly connected to mobile phonestabletspaired with Bluetooth to play music. Speaker function: 1. Bluetooth version: V5.0 2. Wireless transmission range: less than 10M 3. Audio noise ratio: ≥90db 4. Battery capacity: 4400mAh 5. Built-in voltage: 7.4V 6. Normal volume playback: 10H~12H 7. Power: 4Ω 15W x 2 8. Frequency response: 100HZ-20KHZ 9. Product size: 292x132x139mm 10. Product weight: 1600g 11. Charging voltage: 5V2A Package includes: Bluetooth speaker x 1 USB data cable x 1 Audio cable x 1 Belt x 1