Features: Wide Compatibility - Suitable for all Qi standard phones. Specification: Product type: Wireless Charger Transmitter Module Input: 5V 2A Output: 5V 1A Transmission distance: 2-8mm Standard: Qi standard Certification: CE/FCC/ROSH Package size: approx. 12 * 6 * 1 cm/ 4.7 * 2.4 * 0.4 in Package weight: 14g/ 0.5oz Package List: 1 * Wireless Charger Transmitter Module Notes: Wireless charging = transmitter + receiver ( They should work together.) 1. Mobile phone ''has'' wireless charging: If your mobile phone has built-in ''receiver'' itself, or you already purchased the ''receiver'', you can recharge it after purchasing the ''transmitter (base)''. 2. The phone does not have a wireless charging function: If your mobile phone does not have a ''receiver (slice)'', you need to purchase ''transmitting terminal (base) + receiving end (sMD)'' before charging.