ECO Sound Engineering ECO-V800-12376 Bluetooth Stereo Speaker with Mic - Retail Packaging - Black Rechargeable Lithium-ion Battery, Micro USB Charging Cable (Included), 3.5mm Auxiliary Cable (Included) Neodymium Speakers, Stylish Metal Grill, Up to 6hrs Play time, Up to 72hrs Standby time Frequency Range: 2.4-2.4835GHz, Output Power: 3W x 2, Charging Voltage: 4.5-5.5V Bluetooth Version: V2.1 + EDR, Bluetooth Profiles Supported: A2DP, AVRCP Transmission Power: Class 2, Operation Range: Up to 10 Meters Rechargeable Lithium-ion Battery, Micro USB Charging Cable (Included), 3.5mm Auxiliary Cable (Included)^Neodymium Speakers, Stylish Metal Grill, Up to 6hrs Play time, Up to 72hrs Standby time^Frequency Range: 2.4-2.4835GHz, Output Power: 3W x 2, Charging Voltage: 4.5-5.5V^Bluetooth Version: V2.1 + EDR, Bluetooth Profiles Supported: A2DP, AVRCP^Transmission Power: Class 2, Operation Range: Up to 10 Meters