Item Type: Headphone Condition: 100% brand new Material: ABS Color: Black Bluetooth Version: V5.0, dual sound channel stereo output Rated Power: 30mW x 2 Loudspeaker Unit: 24/30mm Maximum Volume: 112dB Battery: 3.7V/250mAh rechargeable polymer lithium battery Music/Talk Time: 16 hours Standby Time: 700 hours Charging Time: 2 hours Size: As shown Package List 1 x Bluetooth Headphone 2 x Sponge Covers 1 x User Manual 4 x Hook&loops Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Adopt advanced Bluetooth V5.0 chip, HIFI stereo sound quality, clear hands-free call. 2Built-in high sensitivity microphone, and equipped with a windproof sponge cover. 3Suitable for most motorcycle helmets on the market, DIY installation, easy to use. 4Designed with built-in rechargeable lithium battery, long standby time up to 700 hours. 5Provide great convenience for you when riding motorcycle, making you fondle admiringly.