Features: Wireless Bluetooth Streaming Rechargeable Battery Speakerphone Built-in carabiner Splashproof Integrated 3.5mm audio cable Product specifications: Bluetooth version: 3.0 Support: A2DP V1.2, AVRCP V1.4, HFP V1.6, HSP V1.2 Transducer: 1 x 40mm Output power: 3.2W Frequency response: 160Hz – 20kHz Signal-to-noise ratio: >80dB Battery Type: Lithium-ion Polymer (3.7V, 600mAh) Battery charge time: 2 hrs @ 0.5A Music playing time: up to 5 hours (varies by volume level and audio content) Bluetooth transmitter power: 0-4dBm Bluetooth transmitter frequency range: 2.402 – 2.480GHz Bluetooth transmitter modulation: GFSK, π/4 DQPSK, 8DPSK Dimensions (H x W x D): 107 x 88 x 42mm Weight: 150g Splash-proof means no more worrying about rain or spills; you can even clean it with running tap water. Just don’t submerge it. WARRANTY PERIOD: ONE YEAR