Features volume control and microphone on flat ABS plastic panel.

Micro USB charging cable included.

Power/Technology:  Rechargeable Lithium Polymer battery: 3.7V; Capacity – 50 mAH; Input: DC 5V / 200mA; Work Current: 30 mA; Charge Current: 30-150mA; Transmit power: 98-108db; Frequency response: 20-20000hz; Transmission Range: 10m (30 ft); Wireless V 4.2

Item must be charged prior to first use. Charge time varies by device, minimum 2 hours.

Playback time: Approx. 1-2 hours depending on use.

Features red LED indicator light.

Product Size: 0.375" W x 1.875" H

Imprint Area: 1.125" W x .25" H