NewRixing NR-3023 Portable Stereo Wireless Bluetooth Speaker, Built-in Microphone, Support TF Card FM(Black) Features: 1. Compatible with FM, TF, audio input, Bluetooth stereo, excellent sound quality, powerful bass, hands-free function, one-key answering, creative simple and elegant appearance 2. Bluetooth wireless transmission solves the usual problem of long wires and short wires. You can put it wherever you want to go wireless 3. You can answer the phone, connect the phone with Bluetooth, speaker with microphone, zero radiation, good health 4. The appearance is made of plastic material, the texture is extraordinary and fashionable 5. Dual magnetic dual speaker subwoofer, using high-fidelity speakers, the sound is more natural and delicate 6. Built-in high-capacity 1200 mAh lithium battery, environmentally friendly and practical 7. TWS connection Specifications: 1. Bluetooth version: V5.0 2. Output power: 3W x 2 3. Speaker unit: 4Ω3S 45mm 4. LED flashlight power: 1W 5. SNR: above 80dB 6. Battery capacity: 1200mAh 7. Technical frequency: 100Hz -18KHz 8. FM frequency modulation: 87MHz-108MHz 9. Product size: 8.2x8.2x21cm 10. Product weight: 0.485kg Package Contents: Bluetooth speaker x 1 Charging cable x 1 Audio cable x 1 English user manual x 1