1、2 In 1 Bluetooth Headset: Includes two modes, wireless and wired. With 3.5mm jack, support wired mode (vocal cable not included), compatible with all 3.5mm devices. 2、Wireless Technology: Soft and comfortable ear cushions, retractable headband, bring you a comfortable wireless music experience. Light weight, small size, strong bass. 3、Foldable Bluetooth Headset: Excellent sound quality performance, foldable design is easy to carry at any time. It only takes 2 hours to charge and is easy to use. 4、Support Memory Card Playback: Support memory card player, can switch songs, memory playback, volume adjustment, etc., equivalent to a memory card MP3 player. 5、Shocking Bass: The newly upgraded 40mm unit provides powerful sound quality at low frequencies, and excellent and clear sound quality is guaranteed. Item Type: Wireless Headphone Material: ABS Model: S6 Bluetooth: 5.0 USB Charging: DC 5V Frequency: 87.5-108MHz Wireless Frequency: 2.401-2.480GHz Wireless Distance: Approx. 10m / 32.8ft Frequency Response: 50Hz-20kHz Output Power: 35MW Signal to Noise Ratio: 88dB Charging Time: 2 hours Frequency Range: 20kHz-20000kHz Sensitivity: 90dB/mW Impedance Value: 32 ohm Drive Device: 40mm Battery Capacity: 250mAh Lithium Battery (Shipped with Battery) Transmission Frequency: 2402MHz-2480MHz Support Memory Card, Wireless, Make Calls 1 x Headphone 1 x Charging Cable