Alpine AD-SPK1PRO Turn1™ Waterproof Bluetooth® Speaker with Universal Mounting Bracket Package

Features: Bluetooth® Wireless Audio Streaming  12+ Hours Playtime (varies by volume and level and audio content)   Waterproof: IPX67 True Wireless Stereo (TWS) Multi-Unit Pairing (pairs up to two speakers)  Built-in Mic for Hands-Free calling  Auto Power Off   Dual External Passive Radiators for open-air bass extension Micro-USB to USB Charge  3 ft Carry Strap Included Specifications: Product Dimensions:  11.02” x 4.65” x 4.72” Weight: 1730g (3lbs, 13oz)  Output: 36-watt RMS, 40-watts Peak   Frequency Response: 50Hz-20kHz  Signal-to-Noise (S/N) Ratio: >70dB  Transmission Distance: 33 feet  Bluetooth® Version: 5.0   Battery Capacity: 3600mAh   Battery Type: Built-in Li-Ion  Playing Time: 7 – 8 (at 70% volume); 12 – 14 hours (at 50% volume)   Charging Time: 4 – 6 hours   Charging Voltage: 5V/ 1.7A  Aux Input: 3.5mm Audio Cable Input