Features 1、Universal motorcycle intercoms, adopts the latest 4.1+EDR Bluetooth technology, compatible with almost all Bluetooth devices. 2、Has steady signal transmission, 10m transmission distance, compatible with both for IOS and for Android devices. 3、Support automatic answering, telephone number broadcast, (press the power button once to answer the call, press again to hang up, press twice to directly dial the most recent phone number). 4、Support hands‑free answering/hanging up, built‑in high‑quality anti‑interference microphone with windproof sponge, provides Hi‑Fi sound quality. 5、Small size, light weight, easy to carry, provides easy communication, makes driving safer. 6、The host has a built‑in lithium battery, ultra‑low power consumption, and has long continuous working time. Specifications: Item Type: Motorcycle Intercoms Material: ABS Color: Black Bluetooth Version: 4.1+EDR Frequency Range: 2.4026GHz-2.480GHz Transmission Distance: Approx. 10m/32.8ft (Depend on Different Environmental Factors and Different Mobile Phone Bluetooth Devices) Microphone Transmission Distance: ≤1m/3.3ft Built-In Lithium Battery: 3.7V/500mA Charging Time: ≤ 1 Hour Standby Time: 240 Hours Continuous Working Time: About 32 Hours Bluetooth Name: BT12 Compatible Devices: Universal Type, Compatible with All Bluetooth Devices Package List 1 x Bluetooth Intercom Host W/Mic and Headset 4 x Headset Cap 1 x Microphone Cap 1 x USB Data Cable 1 x Fixing Bracket 2 x Screw(W/Nut) 1 x Manual