40W Portable Type-C Wireless TWS Bluetooth Stereo Bass Speaker Audio DSP Sound TF Speaker Outdoor Christmas birthday Gift Production featuer: Large low frequency radiator support, built-in DSP audio chip, TWS interconnection. Retro design & metal case, stylish appearance, anti-scratch, metal button, EQ sound effect switch. Built-in lossless decoding chip, supporting FLAC, APE, WAN, MP3 and other formats. 5200mAh lithium battery, playing over 15 hours. Bluetooth 4.2 chip, high fidelity transmission, stable connection of 10~18 meters, farewell delay & Caton. TF card (maximum support 32G), audio input to play music. Bluetooth connection status, support hands-free answering calls. Tips Since the output power of this speaker is relatively strong, do not listen to the speaker too closely, please take the appropriate distance to listen To avoid discomfort caused by excessive sound, please listen to your favorite music at the right volume