• Wireless earbuds with microphone in ABS+ AS Plastic case. • Power/Technology: Rechargeable Lithium Polymer battery: 3.7V/55 mAh; Sensitivity: 110 dB; Frequency response: 20Hz-20000Hz; Transmission Range: 10m (30 ft); Wireless: 4.2; Wireless Profile: HSP/HFP/ADP/AVRCP. • Great for grooving to music or answering calls. • Features LED indicator light that shines red while charging, and turns off once charge is complete; blinks blue once paired. • Approx. 2.5 hours of playback time for music, 1.5 hours talk time. • Must charge prior to first use. Charge time varies by device. Minimum charge time 1.5 hours. • Includes USB charging cable and instructions. • FCC Approved. WARNING: Refer to the item manual for safety and warning instructions.