Wireless rechargeable earbuds with microphone in compact round AS+ABS Plastic storage case. Buds features color Silicone accent. Power/Technology: Rechargeable Lithium Polymer battery; Capacity: 35 mAh; Input: 5V; Impedance: 8?; Work Current: 20 mA; Sensitivity: 100±3dB; Frequency response: 20-20000hz; Wireless 4.2; Wireless profiles: HSP, HFP, ADP and AVRCP; Transmission range: 10m (approx. 30 ft). Features LED indicator light: glows red during charge, light turns off once charge is complete. Item must be charged prior to first use. Charge time varies by device, minimum 1 hr. Use microphone for handsfree calling. Playback time: Music approx. 2 hrs., talk time approx. 1 hr. Includes PVC USB to Micro USB charging cable and instructions. CE and FCC Approved.