Silicone material, an injection forming, waterproof, dustproof, prevent fall off . Support bluetooth 4.1 model, supporting the card read mode, support audio input mode, bluetooth hands-free meeting mode, implement the key answer, hang up, back to dial the phone functions, built-in microphone, high noise, no echo, 1 m distance call effect is clear . Processing of built-in DSP sound power amplifier IC, voice soft heavy bass effect, let you be in home, anytime, anywhere to enjoy outdoor travel, business work. To great sound effects Built-in speaker output power 6 w, loud sound clear effect Support a key switch mode function: bluetooth models/read card/AUX mode . The voice prompt function, a Chinese/English two default languages to choose from Bluetooth version: BK V4.1Shenzhen Hualong Sun Rising co.,Ltd