T&G TG-442 TWS Portable Mini Wireless Bluetooth Speaker with Suction Cup 1. Adopting advanced wireless audio decoding chips, supporting wireless device connection. 2. Supports FM radio reception and can directly search for radio stations in the listening area. 3. The sound is soft, clear, and dynamic, with distinct layers. 4. Read TF card and USB flash drive directly. 5. The wireless reception distance can reach up to 10 meters. 6. Wireless mode no connection, shut down in half an hour. 7. Support TWS function. Specifications Bluetooth: V5.3 Supports wireless protocols: Supports L2CAPA2DPAVRCP for receiving stereo audio signals, and can control the up and down curve operations of the audio transmitter through the protocol Support HSPHFP, with hands-free function, capable of voice communication Wireless transmission range: 10m Audio to noise ratio: >= 90dB Speaker specification: 45mm x 1 Speaker power: 4ohm 3W x 1 Frequency response: 120Hz-20KHz Battery capacity: 500mAh Built in voltage: 3.7V Normal volume playback: about 2 hours Charging voltage: 5V0.5A Charging time: about 1.5 hours Size: 90x90x48mm Net weight: about 174g Package included BT Speaker x1 Charging cable x1 Aux input cable x1 User manual x1