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. Complies with Prop 65. 0.375" W x 1.875" H x 0.3125" D Imprint Area 1.125" W x 0.25" H on centered on Remote Production Time The standard production time is 7-12 business days and 24-hour rush service is available for certain products. Please email [email protected] with your deadline for any rush orders.