SHIDU S510 Bluetooth Voice Amplifier (5W, 1200mAh)

Output Power: RMS 5W | Model: S510 | Battery Capacity: 1200mAh Lithium Battery | Standby Time: 12–18 Hours | Charging Voltage: 5V / 500mA | Sound Coverage: 400㎡ | Radio Frequency: 90Hz–108KHz | Input Signal: Microphone (−20dB 600Ω) | Output: 2Ω | AUX Input: Support | Audio Format: MP3 / WMA / WAV | Store Mode: TF Card / USB Disk | Size: 110×88×38mm | Weight: 290g | Appearance: Piano Stoving Varnish | Other Function: A Key Loop / Operating Charging Indicator Light / Reminder / Waist Hanged Design / Roller Volume Control