The GRODD Rock 307 is a compact and powerful wireless Bluetooth speaker designed for music lovers who want clear sound, colorful lights, and multiple ways to enjoy their music. Whether at home, outdoors, or at a party, this speaker is built to deliver reliable performance. Key Features Powerful 10W speaker with passive radiator for deep bass and clear sound TWS function lets you connect two Rock 307 speakers together for double the sound Built-in RGB LED lights that can be turned on or off to match your mood Multiple playback options: Bluetooth, USB, TF card, AUX, FM radio, and TWS Built-in microphone for hands-free calling Long-lasting battery with up to 7 hours of playtime (without lights, 70% volume) Strong and portable design made of ABS body and metal Why You’ll Love It Easy to connect with your phone or other Bluetooth devices Compact size makes it convenient to carry anywhere FM radio with automatic station search and memory function Simple controls for music, volume, calls, and lights Great for family use, travel, parties, or outdoor events Specifications Output Power: 10W + 1 Passive Radiator Bluetooth Version: 5.4 | Range: up to 10m Battery: 2000 mAh rechargeable Li-ion Playback Time: Up to 7 hours (without lights, 70% volume) Size: 242 × 72 × 125 mm Material: ABS + Metal Supported Modes: Bluetooth / FM Radio / AUX / USB / TF Card / TWS / Hands-Free Calling How To Enable FM Mode Short Press the "M" button to switch to FM mode. Long pressing the "play&pause" button will search radio stations automatically. After finishing the search radio, the speaker will automatically memorize the frequencies found. You can press the "+" button or "-" button to select the radio stations. (Please note that this function needs to plug in a charging cable to enhance the radio signal, Open areas will get more channels).